diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4467add..ca9df49 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v5
diff --git a/.github/workflows/ruff-lint.yml b/.github/workflows/ruff-lint.yml
index 511177d..80ce22f 100644
--- a/.github/workflows/ruff-lint.yml
+++ b/.github/workflows/ruff-lint.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v5
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 2752f0d..b5d869c 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
     - name: Checkout code
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set up Python
       uses: actions/setup-python@v5