diff --git a/.github/workflows/build-dmg.yml b/.github/workflows/build-dmg.yml
index edfb47c..b208576 100644
--- a/.github/workflows/build-dmg.yml
+++ b/.github/workflows/build-dmg.yml
@@ -10,7 +10,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.3
 
       - name: Select Xcode
         run: xcodebuild -version
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 7af10de..78b2108 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1
+        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
 
       - name: Xcode version
         run: xcodebuild -version