diff --git a/.github/workflows/cd.yml b/.github/workflows/cd.yml
index d41aac1..d9f26e2 100644
--- a/.github/workflows/cd.yml
+++ b/.github/workflows/cd.yml
@@ -8,7 +8,7 @@ jobs:
   CD:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
       - name: Install pypa/build
         run: >-
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 5f9597b..28b9bdd 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         python_ver: [ '3.7', '3.8', '3.9', '3.10', '3.11' ]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install poetry
         run: |
           pipx install poetry
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index baed360..47b1657 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@v4
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL