diff --git a/.github/workflows/code-quality.yml b/.github/workflows/code-quality.yml
index d66e2e2..330234b 100644
--- a/.github/workflows/code-quality.yml
+++ b/.github/workflows/code-quality.yml
@@ -15,7 +15,7 @@ jobs:
     name: Linting
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.2.0
+    - uses: actions/checkout@v3.4.0
     - name: Setup python
       uses: actions/setup-python@v4.3.1
       with:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index b2fa895..2a3dab1 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v3.2.0
+      uses: actions/checkout@v3.4.0
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v2
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3db5810..13d7ce0 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ jobs:
       matrix:
         puzzle-year: ['2015', '2016', '2017', '2018', '2019', '2020', '2021', '2022']
     steps:
-    - uses: actions/checkout@v3.2.0
+    - uses: actions/checkout@v3.4.0
     - name: Set up Python
       uses: actions/setup-python@v4.3.1
       with:
@@ -51,7 +51,7 @@ jobs:
     name: Rust tests
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3.2.0
+    - uses: actions/checkout@v3.4.0
     - name: Set up rust
       uses: actions-rs/toolchain@v1
       with: