diff --git a/.github/workflows/Build.yml b/.github/workflows/Build.yml
index d96306c..b67fdf4 100644
--- a/.github/workflows/Build.yml
+++ b/.github/workflows/Build.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup JDK
         uses: actions/setup-java@v3
diff --git a/.github/workflows/Release.yml b/.github/workflows/Release.yml
index 60c22d5..39fd2c0 100644
--- a/.github/workflows/Release.yml
+++ b/.github/workflows/Release.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup JDK
         uses: actions/setup-java@v3
diff --git a/.github/workflows/gradle-wrapper-validation.yml b/.github/workflows/gradle-wrapper-validation.yml
index 9f15138..105046d 100644
--- a/.github/workflows/gradle-wrapper-validation.yml
+++ b/.github/workflows/gradle-wrapper-validation.yml
@@ -7,6 +7,6 @@ jobs:
     name: Validate Gradle Wrapper
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Validate Gradle Wrapper
         uses: gradle/wrapper-validation-action@v1