diff --git a/.github/workflows/build-and-sign.yml b/.github/workflows/build-and-sign.yml
index c2676df..b26a79e 100644
--- a/.github/workflows/build-and-sign.yml
+++ b/.github/workflows/build-and-sign.yml
@@ -42,7 +42,7 @@ jobs:
       dmg_path: ${{ steps.create_dmg.outputs.dmg_path }}
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Select Xcode
       env:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4c23d56..2c2820f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: macos-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Select Xcode
       env:
@@ -38,7 +38,7 @@ jobs:
         xcode: ['15.4', '16.2']
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Select Xcode
       run: sudo xcode-select -s "/Applications/Xcode_${{ matrix.xcode }}.app"
@@ -84,7 +84,7 @@ jobs:
     runs-on: macos-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: SwiftLint
       run: |
@@ -97,7 +97,7 @@ jobs:
     continue-on-error: true  # Don't fail the build for now
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Install swift-format
       run: brew install swift-format
@@ -112,7 +112,7 @@ jobs:
     runs-on: macos-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     
     - name: Run security audit
       run: |
diff --git a/.github/workflows/pr-validation.yml b/.github/workflows/pr-validation.yml
index babf5fa..fa3d23f 100644
--- a/.github/workflows/pr-validation.yml
+++ b/.github/workflows/pr-validation.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
     
@@ -249,7 +249,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
     
diff --git a/.github/workflows/release-common.yml b/.github/workflows/release-common.yml
index 7d673bd..7b429ac 100644
--- a/.github/workflows/release-common.yml
+++ b/.github/workflows/release-common.yml
@@ -23,7 +23,7 @@ jobs:
       tag: ${{ steps.version.outputs.tag }}
       
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
@@ -69,7 +69,7 @@ jobs:
     runs-on: macos-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/version-helper.yml b/.github/workflows/version-helper.yml
index 28f15cd..f153e61 100644
--- a/.github/workflows/version-helper.yml
+++ b/.github/workflows/version-helper.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0