diff --git a/.github/workflows/build-ios-app.yml b/.github/workflows/build-ios-app.yml
index 9a740ea..4f22a22 100644
--- a/.github/workflows/build-ios-app.yml
+++ b/.github/workflows/build-ios-app.yml
@@ -37,7 +37,7 @@ jobs:
       - name: Setup Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: '4.0.0'
+          ruby-version: '4.0.1'
           bundler-cache: true
 
       - name: Setup Node.js
diff --git a/.tool-versions b/.tool-versions
index caa9fcb..cd9e030 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
 nodejs 24.12.0
-ruby 4.0.0
+ruby 4.0.1
 rust 1.92.0