diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index dffdeb1a..cb7e37f0 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
@@ -73,7 +73,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
@@ -114,7 +114,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
@@ -159,7 +159,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
diff --git a/.github/workflows/claude-code-review-manual.yml b/.github/workflows/claude-code-review-manual.yml
index fc5363c2..ae42e096 100644
--- a/.github/workflows/claude-code-review-manual.yml
+++ b/.github/workflows/claude-code-review-manual.yml
@@ -29,7 +29,7 @@ jobs:
     
     steps:
       - name: Checkout PR
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: refs/pull/${{ inputs.pr_number }}/merge
           fetch-depth: 0
diff --git a/.github/workflows/claude.yml b/.github/workflows/claude.yml
index cf119f44..c1883100 100644
--- a/.github/workflows/claude.yml
+++ b/.github/workflows/claude.yml
@@ -26,7 +26,7 @@ jobs:
       actions: read # Required for Claude to read CI results on PRs
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 1
 
diff --git a/.github/workflows/fastlane-deploy.yml b/.github/workflows/fastlane-deploy.yml
index f5f533ea..bb448ef2 100644
--- a/.github/workflows/fastlane-deploy.yml
+++ b/.github/workflows/fastlane-deploy.yml
@@ -29,7 +29,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index a4e4ad3d..5a6d4ce7 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -45,7 +45,7 @@ jobs:
       
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       with:
         fetch-depth: 2  # Need history for version comparison
         token: ${{ secrets.GITHUB_TOKEN }}
@@ -203,7 +203,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
@@ -279,7 +279,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up JDK 17
       uses: actions/setup-java@v5
@@ -342,7 +342,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Download APK artifact
       uses: actions/download-artifact@v5
@@ -478,7 +478,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Download AAB artifact
       uses: actions/download-artifact@v5
@@ -668,7 +668,7 @@ jobs:
     
     steps:
     - name: Checkout code
-      uses: actions/checkout@v5
+      uses: actions/checkout@v6
       
     - name: Set up Python
       uses: actions/setup-python@v5