diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 6a198bb9..98db65f2 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
       - name: install tools
         run: pip install flake8 black
       - name: enforce coding styles using flake8
diff --git a/.github/workflows/interop.yml b/.github/workflows/interop.yml
index 7349c7e5..f7e7fd91 100644
--- a/.github/workflows/interop.yml
+++ b/.github/workflows/interop.yml
@@ -82,7 +82,7 @@ jobs:
           echo $STARTTIME
           echo "starttime=$STARTTIME" >> $GITHUB_OUTPUT
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Determine servers
@@ -167,7 +167,7 @@ jobs:
     name: (${{ matrix.server }} - ${{ matrix.client }})
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Enable IPv6 support
@@ -254,7 +254,7 @@ jobs:
       LOGNAME: ${{ needs.config.outputs.logname }}
     steps:
       - uses: actions/checkout@v4
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Download results