diff --git a/.github/workflows/build-and-deploy-on-pypi.yml b/.github/workflows/build-and-deploy-on-pypi.yml
index 444ee604d5..4ba6f73eb2 100644
--- a/.github/workflows/build-and-deploy-on-pypi.yml
+++ b/.github/workflows/build-and-deploy-on-pypi.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/citation_file_validator.yml b/.github/workflows/citation_file_validator.yml
index dc62ef0056..a902deb3ef 100644
--- a/.github/workflows/citation_file_validator.yml
+++ b/.github/workflows/citation_file_validator.yml
@@ -19,7 +19,7 @@ jobs:
     if: github.repository == 'ESMValGroup/ESMValCore' # avoid GAs in forks
     steps:
       - name: Check out a copy of the repository
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           persist-credentials: false
       - name: Check whether the citation metadata from CITATION.cff is valid
diff --git a/.github/workflows/run-tests-monitor.yml b/.github/workflows/run-tests-monitor.yml
index 0f0b14bb6e..0606efa15f 100644
--- a/.github/workflows/run-tests-monitor.yml
+++ b/.github/workflows/run-tests-monitor.yml
@@ -31,7 +31,7 @@ jobs:
           - test-py314
     name: ${{ matrix.os }} ${{ matrix.environment }}
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 2343e19b91..8eb1412db1 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -33,7 +33,7 @@ jobs:
           - test-r
     name: ${{ matrix.os }} ${{ matrix.environment }}
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/update-lockfiles.yml b/.github/workflows/update-lockfiles.yml
index f4838d9ec3..81d8297bc6 100644
--- a/.github/workflows/update-lockfiles.yml
+++ b/.github/workflows/update-lockfiles.yml
@@ -14,7 +14,7 @@ jobs:
   pixi-update:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
         with:
           fetch-depth: 0
           persist-credentials: false