diff --git a/.github/workflows/ci-check.yml b/.github/workflows/ci-check.yml
index 4aefa01..d880640 100644
--- a/.github/workflows/ci-check.yml
+++ b/.github/workflows/ci-check.yml
@@ -9,7 +9,7 @@ jobs:
 
     steps:
       # ...
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
diff --git a/.github/workflows/detekt-analysis.yml b/.github/workflows/detekt-analysis.yml
index 47e9dff..557092c 100644
--- a/.github/workflows/detekt-analysis.yml
+++ b/.github/workflows/detekt-analysis.yml
@@ -38,7 +38,7 @@ jobs:
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     # Gets the download URL associated with the $DETEKT_RELEASE_TAG
     - name: Get Detekt download URL
diff --git a/.github/workflows/prerelease.yml b/.github/workflows/prerelease.yml
index 23e0d1f..15a19d5 100644
--- a/.github/workflows/prerelease.yml
+++ b/.github/workflows/prerelease.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       # ...
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Set up JDK 17
         uses: actions/setup-java@v3
         with: