diff --git a/.github/workflows/auto_merge.yml b/.github/workflows/auto_merge.yml
index 3a075203..2db3a81c 100644
--- a/.github/workflows/auto_merge.yml
+++ b/.github/workflows/auto_merge.yml
@@ -8,7 +8,7 @@ jobs:
     if: github.actor == 'dependabot[bot]'
     steps:
       - name: 'Checkout repository'
-        uses: actions/checkout@v2.4.0
+        uses: actions/checkout@v4.1.4
       - name: 'Automerge dependency updates from Dependabot'
         uses: ahmadnassri/action-dependabot-auto-merge@v2.6
         with:
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 2c9d8380..f2e704b7 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -26,7 +26,7 @@ jobs:
           build-mode: none
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v4.1.4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 8d232cd7..7f4ef167 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -6,7 +6,7 @@ jobs:
   publish-pypi:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v4.1.4
       - name: Set up Python 3.8
         uses: actions/setup-python@v2.3.1
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b4a75f5f..d227b7b1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -6,7 +6,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v4.1.4
       - name: Set up Python
         uses: actions/setup-python@v5.1.0
         with:
@@ -22,7 +22,7 @@ jobs:
       matrix:
         python-version: ['3.8', '3.9', '3.10']
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v4.1.4
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5.1.0
       with:
@@ -35,7 +35,7 @@ jobs:
   coverage:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v4.1.4
       - name: Setup Python
         uses: actions/setup-python@v5.1.0
         with: