diff --git a/Gemfile b/Gemfile
index db4accfb..70864293 100644
--- a/Gemfile
+++ b/Gemfile
@@ -77,7 +77,7 @@ group :development, :test do
   gem 'govuk-lint', '~> 3.10'
   gem 'guard-rspec'
   gem 'pry-byebug'
-  gem 'rspec-rails', '~> 3.8'
+  gem 'rspec-rails', '~> 4.0'
 end
 
 group :development do
diff --git a/Gemfile.lock b/Gemfile.lock
index cfaab98a..efb248a4 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -219,7 +219,7 @@ GEM
       railties (>= 4)
       request_store (~> 1.0)
     logstash-event (1.2.02)
-    loofah (2.5.0)
+    loofah (2.6.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     lumberjack (1.2.5)
@@ -322,14 +322,14 @@ GEM
     rspec-mocks (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
-    rspec-rails (3.9.1)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      railties (>= 3.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-      rspec-support (~> 3.9.0)
+    rspec-rails (4.0.1)
+      actionpack (>= 4.2)
+      activesupport (>= 4.2)
+      railties (>= 4.2)
+      rspec-core (~> 3.9)
+      rspec-expectations (~> 3.9)
+      rspec-mocks (~> 3.9)
+      rspec-support (~> 3.9)
     rspec-support (3.9.3)
     rubocop (0.61.1)
       jaro_winkler (~> 1.5.1)
@@ -456,7 +456,7 @@ DEPENDENCIES
   puma (~> 4.3)
   rails (~> 5.2.4.3)
   rails-controller-testing
-  rspec-rails (~> 3.8)
+  rspec-rails (~> 4.0)
   sass-rails (~> 5.0)
   scenic (~> 1.5)
   spreadsheet_architect