diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e44e99e..faccec7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -26,7 +26,7 @@ jobs:
     steps:
 
       - name: Fetch Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Gradle Wrapper Validation
         uses: gradle/wrapper-validation-action@v1.1.0
@@ -45,7 +45,7 @@ jobs:
           distribution: 'zulu'
           
       - name: Fetch Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Gradle Dependencies Cache
         uses: actions/cache@v3.3.1
@@ -84,7 +84,7 @@ jobs:
           distribution: 'zulu'
 
       - name: Fetch Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Gradle Dependencies Cache
         uses: actions/cache@v3.3.1
@@ -136,7 +136,7 @@ jobs:
           distribution: 'zulu'
 
       - name: Fetch Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Gradle Dependencies Cache
         uses: actions/cache@v3.3.1
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 6d0f534..fb57fa1 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -43,7 +43,7 @@ jobs:
           distribution: 'zulu'
 
       - name: Fetch Sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
       - name: Setup Gradle Dependencies Cache
         uses: actions/cache@v3.3.1