diff --git a/.github/workflows/bump.yml b/.github/workflows/bump.yml
index cc4604b..c9ef090 100644
--- a/.github/workflows/bump.yml
+++ b/.github/workflows/bump.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.4'
       - name: Install dependencies
         run: bundle install
 
diff --git a/.github/workflows/bump_minor.yml b/.github/workflows/bump_minor.yml
index b093da1..0e2f867 100644
--- a/.github/workflows/bump_minor.yml
+++ b/.github/workflows/bump_minor.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.4'
       - name: Install dependencies
         run: bundle install
 
diff --git a/.github/workflows/ruby.yml b/.github/workflows/ruby.yml
index eb2516e..2ade953 100644
--- a/.github/workflows/ruby.yml
+++ b/.github/workflows/ruby.yml
@@ -14,7 +14,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.4'
           bundler-cache: true
       - name: Install dependencies
         run: bundle install
@@ -28,7 +28,7 @@ jobs:
       - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '3.3'
+          ruby-version: '3.4'
           bundler-cache: true
       - name: Install dependencies
         run: bundle install
diff --git a/.ruby-version b/.ruby-version
index fa7adc7..47b322c 100644
--- a/.ruby-version
+++ b/.ruby-version
@@ -1 +1 @@
-3.3.5
+3.4.1
diff --git a/Dockerfile b/Dockerfile
index 893a191..486161d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM ruby:3.3.5-alpine
+FROM ruby:3.4.1-alpine
 
 WORKDIR /app
 
diff --git a/Gemfile.lock b/Gemfile.lock
index 2297e74..a7d2545 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -28,8 +28,8 @@ GEM
       logger
     faraday-net_http (3.4.0)
       net-http (>= 0.5.0)
-    ffi (1.17.0)
-    ffi (1.17.0-x86_64-linux-gnu)
+    ffi (1.17.1)
+    ffi (1.17.1-x86_64-linux-gnu)
     hashdiff (1.1.2)
     ipaddr (1.2.7)
     json (2.9.1)
diff --git a/README.md b/README.md
index 927ee7b..ed6c359 100644
--- a/README.md
+++ b/README.md
@@ -220,7 +220,7 @@ If you update the data field, it will be updated by merging, but if you intentio
 ### Requirements fo standalone app
 
 1. wireguard + wireguard-tools
-2. ruby 3.3.5
+2. ruby 3.4.1
 
 ```bash
 $ bundle install