diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3c9c5c495cf..422671bb931 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -42,6 +42,8 @@ jobs:
           - { path: python, name: python, ci_node_total: 2, ci_node_index: 1, ecosystem: pip }
           - { path: python, name: python_slow, ci_node_total: 2, ci_node_index: 0, ecosystem: pip }
           - { path: python, name: python_slow, ci_node_total: 2, ci_node_index: 1, ecosystem: pip }
+          - { path: swift, name: swift, ci_node_total: 2, ci_node_index: 0, ecosystem: swiftpm }
+          - { path: swift, name: swift, ci_node_total: 2, ci_node_index: 1, ecosystem: swiftpm }
           - { path: terraform, name: terraform, ecosystem: terraform }
 
     steps:
@@ -160,6 +162,13 @@ jobs:
               - 'omnibus/**'
               - 'python/**'
               - '.github/workflows/ci.yml'
+            swift:
+              - Dockerfile.updater-core
+              - 'common/**'
+              - 'updater/Gemfil*'
+              - 'omnibus/**'
+              - 'swift/**'
+              - '.github/workflows/ci.yml'
             terraform:
               - Dockerfile.updater-core
               - 'common/**'
diff --git a/Dockerfile.development b/Dockerfile.development
index 6ddc77397db..cb71827a7f1 100644
--- a/Dockerfile.development
+++ b/Dockerfile.development
@@ -46,6 +46,7 @@ COPY --chown=dependabot:dependabot npm_and_yarn/Gemfile npm_and_yarn/dependabot-
 COPY --chown=dependabot:dependabot nuget/Gemfile nuget/dependabot-nuget.gemspec ${CODE_DIR}/nuget/
 COPY --chown=dependabot:dependabot python/Gemfile python/dependabot-python.gemspec ${CODE_DIR}/python/
 COPY --chown=dependabot:dependabot pub/Gemfile pub/dependabot-pub.gemspec ${CODE_DIR}/pub/
+COPY --chown=dependabot:dependabot swift/Gemfile swift/dependabot-swift.gemspec ${CODE_DIR}/swift/
 COPY --chown=dependabot:dependabot terraform/Gemfile terraform/dependabot-terraform.gemspec ${CODE_DIR}/terraform/
 
 # Prepare the updater project
diff --git a/Dockerfile.updater-core b/Dockerfile.updater-core
index 007bd49b37e..ccb8261f75d 100644
--- a/Dockerfile.updater-core
+++ b/Dockerfile.updater-core
@@ -76,10 +76,11 @@ COPY --chown=dependabot:dependabot npm_and_yarn/Gemfile npm_and_yarn/dependabot-
 COPY --chown=dependabot:dependabot nuget/Gemfile nuget/dependabot-nuget.gemspec nuget/
 COPY --chown=dependabot:dependabot pub/Gemfile pub/dependabot-pub.gemspec pub/
 COPY --chown=dependabot:dependabot python/Gemfile python/dependabot-python.gemspec python/
+COPY --chown=dependabot:dependabot swift/Gemfile swift/dependabot-swift.gemspec swift/
 COPY --chown=dependabot:dependabot terraform/Gemfile terraform/dependabot-terraform.gemspec terraform/
 
 # prevent having all the source in every ecosystem image
-RUN for ecosystem in git_submodules terraform github_actions hex elm docker nuget maven gradle cargo composer go_modules python pub npm_and_yarn bundler; do \
+RUN for ecosystem in git_submodules terraform github_actions hex elm docker nuget maven gradle cargo composer go_modules python pub npm_and_yarn bundler swift; do \
     mkdir -p $ecosystem/lib/dependabot; \
     touch $ecosystem/lib/dependabot/$ecosystem.rb; \
   done
diff --git a/Rakefile b/Rakefile
index 0a16d248c5e..5d668dbdeb3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -31,6 +31,7 @@ GEMSPECS = %w(
   python/dependabot-python.gemspec
   pub/dependabot-pub.gemspec
   omnibus/dependabot-omnibus.gemspec
+  swift/dependabot-swift.gemspec
 ).freeze
 
 def run_command(command)
diff --git a/bin/dry-run.rb b/bin/dry-run.rb
index 7b9266083cc..cc566568903 100755
--- a/bin/dry-run.rb
+++ b/bin/dry-run.rb
@@ -33,6 +33,7 @@
 # - docker
 # - terraform
 # - pub
+# - Swift Package Manager
 
 # rubocop:disable Style/GlobalVars
 
@@ -62,6 +63,7 @@
 $LOAD_PATH << "./nuget/lib"
 $LOAD_PATH << "./python/lib"
 $LOAD_PATH << "./pub/lib"
+$LOAD_PATH << "./swift/lib"
 $LOAD_PATH << "./terraform/lib"
 
 require "bundler"
@@ -100,6 +102,7 @@
 require "dependabot/nuget"
 require "dependabot/python"
 require "dependabot/pub"
+require "dependabot/swift"
 require "dependabot/terraform"
 
 # GitHub credentials with write permission to the repo you want to update
diff --git a/omnibus/dependabot-omnibus.gemspec b/omnibus/dependabot-omnibus.gemspec
index 79760d579b5..3fdda0368e7 100644
--- a/omnibus/dependabot-omnibus.gemspec
+++ b/omnibus/dependabot-omnibus.gemspec
@@ -42,6 +42,7 @@ Gem::Specification.new do |spec|
   spec.add_dependency "dependabot-nuget", Dependabot::VERSION
   spec.add_dependency "dependabot-pub", Dependabot::VERSION
   spec.add_dependency "dependabot-python", Dependabot::VERSION
+  spec.add_dependency "dependabot-swift", Dependabot::VERSION
   spec.add_dependency "dependabot-terraform", Dependabot::VERSION
 
   common_gemspec.development_dependencies.each do |dep|
diff --git a/omnibus/lib/dependabot/omnibus.rb b/omnibus/lib/dependabot/omnibus.rb
index 215a08bc449..58b29d37c92 100644
--- a/omnibus/lib/dependabot/omnibus.rb
+++ b/omnibus/lib/dependabot/omnibus.rb
@@ -16,3 +16,4 @@
 require "dependabot/npm_and_yarn"
 require "dependabot/bundler"
 require "dependabot/pub"
+require "dependabot/swift"
diff --git a/swift/.gitignore b/swift/.gitignore
new file mode 100644
index 00000000000..9829a3f755c
--- /dev/null
+++ b/swift/.gitignore
@@ -0,0 +1,6 @@
+/.bundle/
+/.env
+/tmp
+/dependabot-*.gem
+Gemfile.lock
+helpers/install-dir
diff --git a/swift/.rubocop.yml b/swift/.rubocop.yml
new file mode 100644
index 00000000000..a9f364a37fa
--- /dev/null
+++ b/swift/.rubocop.yml
@@ -0,0 +1 @@
+inherit_from: ../omnibus/.rubocop.yml
diff --git a/swift/Gemfile b/swift/Gemfile
new file mode 100644
index 00000000000..430599a9e1b
--- /dev/null
+++ b/swift/Gemfile
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+source "https://rubygems.org"
+
+gem "dependabot-common", path: "../common"
+
+gemspec
diff --git a/swift/README.md b/swift/README.md
new file mode 100644
index 00000000000..1d5a4bbfd6a
--- /dev/null
+++ b/swift/README.md
@@ -0,0 +1,23 @@
+## `dependabot-swift`
+
+Swift Package Manager support for [`dependabot-core`][core-repo].
+
+### Running locally
+
+1. Install native helpers
+   ```
+   $ export DEPENDABOT_NATIVE_HELPERS_PATH=$PWD/helpers/install-dir
+   $ helpers/build
+   ```
+
+2. Install Ruby dependencies
+   ```
+   $ bundle install
+   ```
+
+3. Run tests
+   ```
+   $ bundle exec rspec spec
+   ```
+
+[core-repo]: https://github.com/dependabot/dependabot-core
\ No newline at end of file
diff --git a/swift/dependabot-swift.gemspec b/swift/dependabot-swift.gemspec
new file mode 100644
index 00000000000..55fc710bbaa
--- /dev/null
+++ b/swift/dependabot-swift.gemspec
@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+require "find"
+
+Gem::Specification.new do |spec|
+  common_gemspec =
+    Bundler.load_gemspec_uncached("../common/dependabot-common.gemspec")
+
+  spec.name         = "dependabot-terraform"
+  spec.summary      = "Swift Package Manager support for dependabot"
+  spec.version      = common_gemspec.version
+  spec.description  = common_gemspec.description
+
+  spec.author       = common_gemspec.author
+  spec.email        = common_gemspec.email
+  spec.homepage     = common_gemspec.homepage
+  spec.license      = common_gemspec.license
+
+  spec.require_path = "lib"
+  spec.files        = []
+
+  spec.required_ruby_version = common_gemspec.required_ruby_version
+  spec.required_rubygems_version = common_gemspec.required_ruby_version
+
+  spec.add_dependency "dependabot-common", Dependabot::VERSION
+
+  common_gemspec.development_dependencies.each do |dep|
+    spec.add_development_dependency dep.name, dep.requirement.to_s
+  end
+
+  next unless File.exist?("../.gitignore")
+
+  ignores = File.readlines("../.gitignore").grep(/\S+/).map(&:chomp)
+
+  next unless File.directory?("lib") && File.directory?("helpers")
+
+  prefix = "/" + File.basename(File.expand_path(__dir__)) + "/"
+  Find.find("lib", "helpers") do |path|
+    if ignores.any? { |i| File.fnmatch(i, prefix + path, File::FNM_DOTMATCH) }
+      Find.prune
+    else
+      spec.files << path unless File.directory?(path)
+    end
+  end
+end
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift.rb b/swift/lib/dependabot/swift.rb
new file mode 100644
index 00000000000..0919eab7c21
--- /dev/null
+++ b/swift/lib/dependabot/swift.rb
@@ -0,0 +1,20 @@
+# frozen_string_literal: true
+
+# These all need to be required so the various classes can be registered in a
+# lookup table of package manager names to concrete classes.
+require "dependabot/swift/package"
+require "dependabot/swift/file_fetcher"
+require "dependabot/swift/file_parser"
+require "dependabot/swift/update_checker"
+require "dependabot/swift/file_updater"
+require "dependabot/swift/metadata_finder"
+require "dependabot/swift/requirement"
+require "dependabot/swift/version"
+
+require "dependabot/pull_request_creator/labeler"
+Dependabot::PullRequestCreator::Labeler.
+  register_label_details("swift", name: "swift_package_manager", colour: "F05138")
+
+require "dependabot/dependency"
+Dependabot::Dependency.
+  register_production_check("swift", ->(_) { true })
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/file_fetcher.rb b/swift/lib/dependabot/swift/file_fetcher.rb
new file mode 100644
index 00000000000..76e6227f6b7
--- /dev/null
+++ b/swift/lib/dependabot/swift/file_fetcher.rb
@@ -0,0 +1,50 @@
+# frozen_string_literal: true
+
+require "dependabot/file_fetchers"
+require "dependabot/file_fetchers/base"
+require "dependabot/swift/package"
+
+module Dependabot
+  module Swift
+    class FileFetcher < Dependabot::FileFetchers::Base
+      def self.required_files_in?(filenames)
+        filenames.include?("Package.swift")
+      end
+
+      def self.required_files_message
+        "Repo must contain a Package.swift configuration file."
+      end
+
+      private
+
+      def fetch_files
+        fetched_files = []
+        fetched_files << package_manifest if package_manifest
+        fetched_files << package_resolved if package_resolved
+
+        check_required_files_present
+
+        return fetched_files if fetched_files.any?
+      end
+
+      def package_manifest
+        @package_manifest ||= fetch_file_from_host("Package.swift")
+      end
+
+      def package_resolved
+        @package_resolved ||= fetch_file_from_host("Package.resolved")
+      end
+
+      def check_required_files_present
+        return if package_manifest
+
+        path = Pathname.new(File.join(directory, "Package.swift")).
+               cleanpath.to_path
+        raise Dependabot::DependencyFileNotFound, path
+      end
+    end
+  end
+end
+
+Dependabot::FileFetchers.
+  register("swift", Dependabot::Swift::FileFetcher)
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/file_parser.rb b/swift/lib/dependabot/swift/file_parser.rb
new file mode 100644
index 00000000000..e562087d01c
--- /dev/null
+++ b/swift/lib/dependabot/swift/file_parser.rb
@@ -0,0 +1,115 @@
+# frozen_string_literal: true
+
+require "cgi"
+require "excon"
+require "nokogiri"
+require "open3"
+require "yaml"
+require "shellwords"
+
+require "dependabot/dependency"
+require "dependabot/file_parsers"
+require "dependabot/file_parsers/base"
+require "dependabot/git_commit_checker"
+require "dependabot/shared_helpers"
+require "dependabot/errors"
+
+module Dependabot
+  module Swift
+    class FileParser < Dependabot::FileParsers::Base
+      require "dependabot/file_parsers/base/dependency_set"
+
+      def parse
+        dependency_set = DependencySet.new
+
+        pins.each do |pin|
+          url = pin["repositoryURL"]
+          id = Dependabot::Swift::Package::Identifier.new(url)
+
+          requirements = parse_declaration(declarations.find { |d| d["url"] == url })
+
+          if requirements.empty? && (version = pin.dig("state", "version"))
+            requirements << Gem::Requirement.new(version.to_s)
+          end
+
+          dependency_set << Dependency.new(
+            name: id.normalized,
+            version: version,
+            package_manager: "swift",
+            requirements: requirements.map do |requirement|
+              {
+                requirement: requirement.to_s,
+                groups: ["dependencies"],
+                file: package_manifest_file.name,
+                source: {
+                  type: "repository",
+                  url: url
+                }
+              }
+            end
+          )
+        end
+
+        dependency_set.dependencies
+      end
+
+      private
+
+      def check_required_files
+        raise "No Package.swift!" unless package_manifest_file
+        raise "No Package.resolved!" unless package_resolved_file
+      end
+
+      def declarations
+        dump_package(package_manifest_file)["dependencies"]
+      end
+
+      def pins
+        JSON.parse(package_resolved_file.content).dig("object", "pins")
+      end
+
+      def dump_package(manifest)
+        SharedHelpers.in_a_temporary_directory do |path|
+          File.write(manifest.name, manifest.content)
+
+          command =  Shellwords.join([
+            "swift", "package", "dump-package",
+            "--skip-update",
+            "--package-path", path
+          ])
+
+          env = {}
+          stdout, _stderr, _status = Open3.capture3(env, command)
+          # handle_parser_error(path, stderr) unless status.success?
+          JSON.parse(stdout)
+        end
+      end
+
+      def package_manifest_file
+        # TODO: Select version-specific manifest
+        @package_manifest_file ||= get_original_file("Package.swift")
+      end
+
+      def package_resolved_file
+        @package_resolved_file ||= get_original_file("Package.resolved")
+      end
+
+      def parse_declaration(declaration)
+        requirements = []
+        declaration&.dig("requirement", "range")&.each do |range|
+          if (lower_bound = range["lowerBound"])
+            requirements << Gem::Requirement.new(">= #{lower_bound}")
+          end
+
+          if (upper_bound = range["upperBound"])
+            requirements << Gem::Requirement.new("< #{upper_bound}")
+          end
+        end
+        requirements
+      end
+    end
+  end
+end
+
+Dependabot::FileParsers.
+  register("swift", Dependabot::Swift::FileParser)
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/file_updater.rb b/swift/lib/dependabot/swift/file_updater.rb
new file mode 100644
index 00000000000..846200fba36
--- /dev/null
+++ b/swift/lib/dependabot/swift/file_updater.rb
@@ -0,0 +1,25 @@
+# frozen_string_literal: true
+
+require "dependabot/file_updaters"
+require "dependabot/file_updaters/base"
+require "dependabot/errors"
+
+module Dependabot
+  module Swift
+    class FileUpdater < Dependabot::FileUpdaters::Base
+      def self.updated_files_regex
+        [
+          /Package(@swift-\d(\.\d){0,2})?\.swift/,
+          /^Package\.resolved$/
+        ]
+      end
+
+      def updated_dependency_files
+        raise NotImplementedError
+      end
+    end
+  end
+end
+
+Dependabot::FileUpdaters.
+  register("swift", Dependabot::Swift::FileUpdater)
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/metadata_finder.rb b/swift/lib/dependabot/swift/metadata_finder.rb
new file mode 100644
index 00000000000..2501e02a0b1
--- /dev/null
+++ b/swift/lib/dependabot/swift/metadata_finder.rb
@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+require "excon"
+require "json"
+require "dependabot/metadata_finders"
+require "dependabot/metadata_finders/base"
+require "dependabot/shared_helpers"
+
+module Dependabot
+  module Swift
+    class MetadataFinder < Dependabot::MetadataFinders::Base
+      private
+
+      def look_up_source
+        case new_source_type
+        when "git" then find_source_from_git_url
+        when "registry" then find_source_from_registry
+        else raise "Unexpected source type: #{new_source_type}"
+        end
+      end
+
+      def new_source_type
+        sources =
+          dependency.requirements.map { |r| r.fetch(:source) }.uniq.compact
+
+        return "default" if sources.empty?
+        raise "Multiple sources! #{sources.join(', ')}" if sources.count > 1
+
+        sources.first[:type] || sources.first.fetch("type")
+      end
+
+      def find_source_from_git_url
+        info = dependency.requirements.map { |r| r[:source] }.compact.first
+
+        url = info[:url] || info.fetch("url")
+        Source.from_url(url)
+      end
+
+      def find_source_from_registry
+        raise NotImplementedError
+      end
+    end
+  end
+end
+
+Dependabot::MetadataFinders.
+  register("swift", Dependabot::Swift::MetadataFinder)
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/package.rb b/swift/lib/dependabot/swift/package.rb
new file mode 100644
index 00000000000..97ab2ffa825
--- /dev/null
+++ b/swift/lib/dependabot/swift/package.rb
@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+
+require "dependabot/swift/package/identifier"
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/package/identifier.rb b/swift/lib/dependabot/swift/package/identifier.rb
new file mode 100644
index 00000000000..59a2425b589
--- /dev/null
+++ b/swift/lib/dependabot/swift/package/identifier.rb
@@ -0,0 +1,49 @@
+# frozen_string_literal: true
+
+require "uri"
+
+module Dependabot
+  module Swift
+    module Package
+      class Identifier
+        include Comparable
+
+        SCOPE_REGEX = /[a-zA-Z\d](?:[a-zA-Z\d]|-(?=[a-zA-Z\d])){0,38}/.freeze
+        NAME_REGEX = /\p{XID_Start}\p{XID_Continue}{0,127}/.freeze
+
+        attr_reader :scope, :name
+
+        def initialize(string)
+          case string
+          when %r{\Ahttps?://(?:www\.)?github.com(?:\:\d+)?/#{SCOPE_REGEX}/#{NAME_REGEX}(?:\.git)?\z}
+            components = URI(string).path.split("/").reject(&:empty?)
+            @scope = components.first
+            @name = components.last.sub(/\.git$/, "")
+          when %r{\A(?:ssh\://)?git@github.com[/:]#{SCOPE_REGEX}/#{NAME_REGEX}(?:\.git)?\z}
+            components = string.sub(%r{(?:ssh\://)?git@github.com[:/]}, "").split("/")
+            @scope = components.first
+            @name = components.last.sub(/\.git$/, "")
+          when /%r{\A#{SCOPE_REGEX}\.#{NAME_REGEX}\z}/
+            @scope, @name = string.split(".")
+          end
+        end
+
+        def normalized
+          "#{@scope.downcase}.#{@name.unicode_normalize(:nfkc).downcase(:fold)}"
+        end
+
+        def inspect
+          "#<#{self.class.name}:#{object_id} scope: #{@scope}, name: #{@name}>"
+        end
+
+        def to_s
+          "#{scope}.#{name}"
+        end
+
+        def <=>(other)
+          normalized <=> other.normalized
+        end
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/requirement.rb b/swift/lib/dependabot/swift/requirement.rb
new file mode 100644
index 00000000000..061c97d1de1
--- /dev/null
+++ b/swift/lib/dependabot/swift/requirement.rb
@@ -0,0 +1,16 @@
+# frozen_string_literal: true
+
+require "dependabot/utils"
+require "dependabot/swift/version"
+
+# Override all essential methods to make it possible to delegate all work to the
+# dedicated Dart library for parsing and updating Dart version constraints.
+module Dependabot
+  module Swift
+    class Requirement < Gem::Requirement
+    end
+  end
+end
+
+Dependabot::Utils.
+  register_requirement_class("swift", Dependabot::Swift::Requirement)
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/update_checker.rb b/swift/lib/dependabot/swift/update_checker.rb
new file mode 100644
index 00000000000..1d6b69a3984
--- /dev/null
+++ b/swift/lib/dependabot/swift/update_checker.rb
@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+require "json"
+require "yaml"
+
+require "dependabot/update_checkers"
+require "dependabot/update_checkers/base"
+require "dependabot/git_commit_checker"
+require "dependabot/shared_helpers"
+require "dependabot/swift/requirement"
+require "dependabot/swift/version"
+
+module Dependabot
+  module Swift
+    class UpdateChecker < Dependabot::UpdateCheckers::Base
+      def latest_version
+        raise NotImplementedError
+      end
+
+      def latest_resolvable_version
+        raise NotImplementedError
+      end
+
+      def latest_resolvable_version_with_no_unlock
+        raise NotImplementedError
+      end
+
+      def updated_requirements
+        raise NotImplementedError
+      end
+    end
+  end
+end
+
+Dependabot::UpdateCheckers.
+  register("swift", Dependabot::Swift::UpdateChecker)
\ No newline at end of file
diff --git a/swift/lib/dependabot/swift/version.rb b/swift/lib/dependabot/swift/version.rb
new file mode 100644
index 00000000000..f4409d2b07f
--- /dev/null
+++ b/swift/lib/dependabot/swift/version.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+module Dependabot
+    module Swift
+      class Version < Gem::Version
+      end
+    end
+  end
+  
+  Dependabot::Utils.
+    register_version_class("swift", Dependabot::Swift::Version)
\ No newline at end of file
diff --git a/swift/script/ci-test b/swift/script/ci-test
new file mode 100644
index 00000000000..8ba165bea47
--- /dev/null
+++ b/swift/script/ci-test
@@ -0,0 +1,6 @@
+#!/bin/bash
+
+set -e
+
+bundle install
+bundle exec parallel_test spec/ -n "$CI_NODE_TOTAL" --only-group "$CI_NODE_INDEX" --group-by filesize --type rspec
diff --git a/swift/spec/dependabot/swift/file_fetcher_spec.rb b/swift/spec/dependabot/swift/file_fetcher_spec.rb
new file mode 100644
index 00000000000..c61aa930a8a
--- /dev/null
+++ b/swift/spec/dependabot/swift/file_fetcher_spec.rb
@@ -0,0 +1,88 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "dependabot/swift/file_fetcher"
+require_common_spec "file_fetchers/shared_examples_for_file_fetchers"
+
+RSpec.describe Dependabot::Swift::FileFetcher do
+  it_behaves_like "a dependency file fetcher"
+
+  let(:directory) { "/" }
+
+  let(:source) do
+    Dependabot::Source.new(
+      provider: "github",
+      repo: "mona/LinkedList",
+      directory: directory
+    )
+  end
+
+  let(:file_fetcher_instance) do
+    described_class.new(source: source, credentials: credentials)
+  end
+
+  let(:github_url) { "https://api.github.com/" }
+
+  let(:url) { github_url + "repos/mona/LinkedList/contents/" }
+
+  let(:credentials) do
+    [{
+      "type" => "git_source",
+      "host" => "github.com",
+      "username" => "x-access-token",
+      "password" => "token"
+    }]
+  end
+
+  before do
+    allow(file_fetcher_instance).to receive(:commit).and_return("sha")
+  end
+
+  context "with a Package.swift file" do
+    before do
+      stub_request(:get, url + "?ref=sha").
+        with(headers: { "Authorization" => "token token" }).
+        to_return(
+          status: 200,
+          headers: { "content-type" => "application/json" },
+          body: fixture("github", "mona", "LinkedList", "repo.json")
+        )
+
+      %w(Package.swift Package.resolved).each do |filename|
+        stub_request(:get, File.join(url, "#{filename}?ref=sha")).
+          with(headers: { "Authorization" => "token token" }).
+          to_return(
+            status: 200,
+            headers: { "content-type" => "application/json" },
+            body: fixture("github", "mona", "LinkedList", "#{filename}.json")
+          )
+      end
+    end
+
+    it "fetches the manifest and resolved files" do
+      expect(file_fetcher_instance.files.map(&:name)).
+        to match_array(%w(Package.swift Package.resolved))
+    end
+  end
+
+  context "with a directory that doesn't exist" do
+    let(:directory) { "/nonexistent" }
+
+    before do
+      %w(Package.swift Package.resolved).each do |filename|
+        stub_request(:get, File.join(url, "nonexistent", "#{filename}?ref=sha")).
+          with(headers: { "Authorization" => "token token" }).
+          to_return(
+            status: 404,
+            headers: { "content-type" => "application/json" },
+            body: fixture("github", "errors", "not_found.json")
+          )
+      end
+    end
+
+    it "raises a helpful error" do
+      expect { file_fetcher_instance.files }.
+        to raise_error(Dependabot::DependencyFileNotFound)
+    end
+  end
+end
\ No newline at end of file
diff --git a/swift/spec/dependabot/swift/file_parser_spec.rb b/swift/spec/dependabot/swift/file_parser_spec.rb
new file mode 100644
index 00000000000..e6e3a7def57
--- /dev/null
+++ b/swift/spec/dependabot/swift/file_parser_spec.rb
@@ -0,0 +1,209 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "dependabot/dependency_file"
+require "dependabot/source"
+require "dependabot/swift/file_parser"
+require_common_spec "file_parsers/shared_examples_for_file_parsers"
+
+RSpec.describe Dependabot::Swift::FileParser do
+  it_behaves_like "a dependency file parser"
+
+  let(:parser) do
+    described_class.new(dependency_files: files, source: source)
+  end
+
+  let(:source) do
+    Dependabot::Source.new(
+      provider: "github",
+      repo: "mona/Example",
+      directory: "/"
+    )
+  end
+
+  let(:files) do
+    [
+      package_manifest_file,
+      package_resolved_file
+    ]
+  end
+
+  let(:package_manifest_file) do
+    Dependabot::DependencyFile.new(
+      name: "Package.swift",
+      content: fixture("github", "mona", "Example", "Package.swift")
+    )
+  end
+
+  let(:package_resolved_file) do
+    Dependabot::DependencyFile.new(
+      name: "Package.resolved",
+      content: fixture("github", "mona", "Example", "Package.resolved")
+    )
+  end
+
+  describe "parse" do
+    subject(:dependencies) { parser.parse }
+
+    context "with hosted sources" do
+      its(:length) { is_expected.to eq(7) }
+
+      describe "the first dependency (https://github.com/mona/LinkedList.git from 1.2.0)" do
+        subject(:dependency) { dependencies[0] }
+
+        let(:expected_requirements) do
+          [">= 1.2.0", "< 2.0.0"].map do |requirement|
+            {
+              requirement: requirement,
+              groups: ["dependencies"],
+              file: "Package.swift",
+              source: {
+                type: "repository",
+                url: "https://github.com/mona/LinkedList.git"
+              }
+            }
+          end
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.linkedlist")
+          expect(dependency.version).to eq("1.2.2")
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+
+      describe "the second dependency (https://github.com/mona/Queue up to next major from 1.1.1)" do
+        subject(:dependency) { dependencies[1] }
+
+        let(:expected_requirements) do
+          [">= 1.1.1", "< 2.0.0"].map do |requirement|
+            {
+              requirement: requirement,
+              groups: ["dependencies"],
+              file: "Package.swift",
+              source: {
+                type: "repository",
+                url: "https://github.com/mona/Queue"
+              }
+            }
+          end
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.queue")
+          expect(dependency.version).to eq("1.5.0")
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+
+      describe "the third dependency (https://github.com/mona/HashMap.git up to next minor from 0.9.0)" do
+        subject(:dependency) { dependencies[2] }
+
+        let(:expected_requirements) do
+          [">= 0.9.0", "< 0.10.0"].map do |requirement|
+            {
+              requirement: requirement,
+              groups: ["dependencies"],
+              file: "Package.swift",
+              source: {
+                type: "repository",
+                url: "https://github.com/mona/HashMap.git"
+              }
+            }
+          end
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.hashmap")
+          expect(dependency.version).to eq("0.9.9")
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+
+      describe "the fourth dependency (git@github.com:mona/Matrix.git up to next minor from 2.0.1)" do
+        subject(:dependency) { dependencies[3] }
+
+        let(:expected_requirements) do
+          [">= 2.0.1", "< 2.1.0"].map do |requirement|
+            {
+              requirement: requirement,
+              groups: ["dependencies"],
+              file: "Package.swift",
+              source: {
+                type: "repository",
+                url: "git@github.com:mona/Matrix.git"
+              }
+            }
+          end
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.matrix")
+          expect(dependency.version).to eq("2.0.1")
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+
+      describe "the fifth dependency (ssh://git@github.com:mona/RedBlackTree.git up to next minor from 0.1.0)" do
+        subject(:dependency) { dependencies[4] }
+
+        let(:expected_requirements) do
+          [">= 0.1.0", "< 0.2.0"].map do |requirement|
+            {
+              requirement: requirement,
+              groups: ["dependencies"],
+              file: "Package.swift",
+              source: {
+                type: "repository",
+                url: "ssh://git@github.com:mona/RedBlackTree.git"
+              }
+            }
+          end
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.redblacktree")
+          expect(dependency.version).to eq("0.1.10")
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+
+      describe "the fifth dependency (https://github.com/mona/Heap on main branch)" do
+        subject(:dependency) { dependencies[5] }
+
+        let(:expected_requirements) do
+          []
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.heap")
+          expect(dependency.version).to eq(nil)
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+
+      # rubocop:disable Layout/LineLength
+      describe "the seventh dependency (https://github.com:443/mona/Trie.git at revision f3b37c3ccf0a1559d4097e2eeb883801c4b8f510)" do
+        # rubocop:enable Layout/LineLength
+        subject(:dependency) { dependencies[6] }
+
+        let(:expected_requirements) do
+          []
+        end
+
+        it "has the right details" do
+          expect(dependency).to be_a(Dependabot::Dependency)
+          expect(dependency.name).to eq("mona.trie")
+          expect(dependency.version).to eq(nil)
+          expect(dependency.requirements).to eq(expected_requirements)
+        end
+      end
+    end
+  end
+end
\ No newline at end of file
diff --git a/swift/spec/dependabot/swift/file_updater_spec.rb b/swift/spec/dependabot/swift/file_updater_spec.rb
new file mode 100644
index 00000000000..310c263f577
--- /dev/null
+++ b/swift/spec/dependabot/swift/file_updater_spec.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "dependabot/dependency"
+require "dependabot/dependency_file"
+require "dependabot/swift/file_updater"
+require_common_spec "file_updaters/shared_examples_for_file_updaters"
+
+# RSpec.describe Dependabot::Swift::FileUpdater do
+#   it_behaves_like "a dependency file updater"
+# end
\ No newline at end of file
diff --git a/swift/spec/dependabot/swift/metadata_finder_spec.rb b/swift/spec/dependabot/swift/metadata_finder_spec.rb
new file mode 100644
index 00000000000..62e2e2e0980
--- /dev/null
+++ b/swift/spec/dependabot/swift/metadata_finder_spec.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "dependabot/dependency"
+require "dependabot/swift/metadata_finder"
+require_common_spec "metadata_finders/shared_examples_for_metadata_finders"
+
+# RSpec.describe Dependabot::Swift::MetadataFinder do
+#   it_behaves_like "a dependency metadata finder"
+# end
\ No newline at end of file
diff --git a/swift/spec/dependabot/swift/update_checker_spec.rb b/swift/spec/dependabot/swift/update_checker_spec.rb
new file mode 100644
index 00000000000..0c4f3133c04
--- /dev/null
+++ b/swift/spec/dependabot/swift/update_checker_spec.rb
@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "dependabot/dependency"
+require "dependabot/swift"
+require "dependabot/shared_helpers"
+require "dependabot/swift/update_checker"
+require_common_spec "update_checkers/shared_examples_for_update_checkers"
+
+# RSpec.describe Dependabot::Swift::UpdateChecker do
+#   it_behaves_like "an update checker"
+# end
\ No newline at end of file
diff --git a/swift/spec/dependabot/swift_spec.rb b/swift/spec/dependabot/swift_spec.rb
new file mode 100644
index 00000000000..fe0fcc895d9
--- /dev/null
+++ b/swift/spec/dependabot/swift_spec.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+require "dependabot/swift"
+require_common_spec "shared_examples_for_autoloading"
+
+RSpec.describe Dependabot::Swift do
+  it_behaves_like "it registers the required classes", "swift"
+end
\ No newline at end of file
diff --git a/swift/spec/spec_helper.rb b/swift/spec/spec_helper.rb
new file mode 100644
index 00000000000..f188399ab07
--- /dev/null
+++ b/swift/spec/spec_helper.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+def common_dir
+    @common_dir ||= Gem::Specification.find_by_name("dependabot-common").gem_dir
+  end
+  
+  def require_common_spec(path)
+    require "#{common_dir}/spec/dependabot/#{path}"
+  end
+  
+  require "#{common_dir}/spec/spec_helper.rb"
+  
+  if ENV["COVERAGE"]
+    # TODO: Bring branch coverage up
+    SimpleCov.minimum_coverage line: 80, branch: 65
+  end
+  
\ No newline at end of file