diff --git a/.github/workflows/ci-workflow.yml b/.github/workflows/ci-workflow.yml
index e7d37d4e..b5f1965a 100644
--- a/.github/workflows/ci-workflow.yml
+++ b/.github/workflows/ci-workflow.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Set up docker-compose
         run: docker-compose up -d
       - uses: actions/setup-node@v3
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 3b05c4c0..0bdf74e9 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -30,7 +30,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
         with:
           # We must fetch at least the immediate parents so that if this is
           # a pull request then we can checkout the head.
diff --git a/.github/workflows/major-release.yml b/.github/workflows/major-release.yml
index 3d0005fd..02fe8a77 100644
--- a/.github/workflows/major-release.yml
+++ b/.github/workflows/major-release.yml
@@ -7,7 +7,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Checkout master
         run: git checkout main
       - uses: actions/setup-node@v3
diff --git a/.github/workflows/minor-release.yml b/.github/workflows/minor-release.yml
index de828bc4..ae881a6e 100644
--- a/.github/workflows/minor-release.yml
+++ b/.github/workflows/minor-release.yml
@@ -7,7 +7,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Checkout master
         run: git checkout main
       - uses: actions/setup-node@v3
diff --git a/.github/workflows/patch-release.yml b/.github/workflows/patch-release.yml
index 983fc516..7c9883e6 100644
--- a/.github/workflows/patch-release.yml
+++ b/.github/workflows/patch-release.yml
@@ -11,7 +11,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
       - name: Checkout master
         run: git checkout main
       - uses: actions/setup-node@v3