diff --git a/.github/workflows/performance.yml b/.github/workflows/performance.yml
index 5333e59..8c974ff 100644
--- a/.github/workflows/performance.yml
+++ b/.github/workflows/performance.yml
@@ -18,7 +18,7 @@ jobs:
     env:
       OS: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/pythontests.yml b/.github/workflows/pythontests.yml
index 926732f..f6172f3 100644
--- a/.github/workflows/pythontests.yml
+++ b/.github/workflows/pythontests.yml
@@ -25,7 +25,7 @@ jobs:
     env:
       OS: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/release-deploy.yml b/.github/workflows/release-deploy.yml
index 07414de..f498fa8 100644
--- a/.github/workflows/release-deploy.yml
+++ b/.github/workflows/release-deploy.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: [ '3.10' ]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
 
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5