diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index 738ef8ea..5eee7185 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -4,7 +4,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v6
         with:
           python-version: 3.12
diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index d080009f..7f2dac91 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Upload website to interop.seemann.io
         uses: burnett01/rsync-deployments@dc0d5d44c4728aad3f02154a87309809e62a960f # v8.0.4
         with:
diff --git a/.github/workflows/interop-test.yml b/.github/workflows/interop-test.yml
index cb34996e..c83c5962 100644
--- a/.github/workflows/interop-test.yml
+++ b/.github/workflows/interop-test.yml
@@ -36,7 +36,7 @@ jobs:
         client: ${{ fromJson(inputs.clients) }}
     name: "client: ${{ matrix.client }}"
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       # Remove this when GitHub runner gets docker engine >= v28.1.0.
       - uses: docker/setup-docker-action@v5
         with:
diff --git a/.github/workflows/interop.yml b/.github/workflows/interop.yml
index 2bd9acfe..5817d4c6 100644
--- a/.github/workflows/interop.yml
+++ b/.github/workflows/interop.yml
@@ -44,7 +44,7 @@ jobs:
           STARTTIME=$(date +%s)
           echo $STARTTIME
           echo "starttime=$STARTTIME" >> $GITHUB_OUTPUT
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v6
         with:
           python-version: 3.12
@@ -72,7 +72,7 @@ jobs:
       matrix:
         image: [ 'quic-network-simulator', 'quic-interop-iperf-endpoint' ]
     steps:
-    - uses: actions/checkout@v6
+    - uses: actions/checkout@v7
     - name: Pull
       run: |
         URL="martenseemann/${{ matrix.image }}"
@@ -98,7 +98,7 @@ jobs:
         image: ${{ fromJson(needs.config.outputs.images) }}
     name: Pull ${{ matrix.image }}
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - name: Run docker pull
         run: |
           URL=$(jq -r '.["${{ matrix.image }}"].image' "${{ needs.config.outputs.implementations_file }}")
@@ -139,7 +139,7 @@ jobs:
     runs-on: ubuntu-latest
     if: always()
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v6
         with:
           python-version: 3.12