diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 6ecd154..5087ce1 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/golangci-lint.yml b/.github/workflows/golangci-lint.yml
index fd7b8fe..2742242 100644
--- a/.github/workflows/golangci-lint.yml
+++ b/.github/workflows/golangci-lint.yml
@@ -14,7 +14,7 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Determine Go version from go.mod
         run: echo "GO_VERSION=$(grep "go 1." go.mod | cut -d " " -f 2)" >> $GITHUB_ENV
       - name: Set up Go
diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 6bf37cd..f62933a 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           fetch-depth: 0
       - name: Determine Go version from go.mod