diff --git a/.github/workflows/backend-tests.yml b/.github/workflows/backend-tests.yml
index 6c5247670..575de6d57 100644
--- a/.github/workflows/backend-tests.yml
+++ b/.github/workflows/backend-tests.yml
@@ -28,7 +28,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
@@ -88,7 +88,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
@@ -160,7 +160,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
@@ -217,7 +217,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/build-and-deploy-docs.yml b/.github/workflows/build-and-deploy-docs.yml
index eab0eec43..43cbfccdd 100644
--- a/.github/workflows/build-and-deploy-docs.yml
+++ b/.github/workflows/build-and-deploy-docs.yml
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Setup Pages
         uses: actions/configure-pages@v5
       - uses: pnpm/action-setup@v4
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 94dd1ac75..46476c3ca 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -25,7 +25,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           # We must fetch at least the immediate parents so that if this is
           # a pull request then we can checkout the head.
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 9a9dcfebb..662f3bbaa 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -15,6 +15,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout Repository'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: 'Dependency Review'
         uses: actions/dependency-review-action@v4
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 81be50e4f..81ba26344 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -21,7 +21,7 @@ jobs:
     steps:
       -
         name: Check out
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: etherpad
 
@@ -123,7 +123,7 @@ jobs:
           enable-url-completion: true
       - name: Check out
         if: github.event_name == 'push' && github.ref == 'refs/heads/develop'
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: ether-charts
           repository: ether/ether-charts
diff --git a/.github/workflows/frontend-admin-tests.yml b/.github/workflows/frontend-admin-tests.yml
index cb00f3332..d7fd22048 100644
--- a/.github/workflows/frontend-admin-tests.yml
+++ b/.github/workflows/frontend-admin-tests.yml
@@ -28,7 +28,7 @@ jobs:
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}-node${{ matrix.node }}'
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/frontend-tests.yml b/.github/workflows/frontend-tests.yml
index d6238ed1f..2a00bedc3 100644
--- a/.github/workflows/frontend-tests.yml
+++ b/.github/workflows/frontend-tests.yml
@@ -22,7 +22,7 @@ jobs:
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}'
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
@@ -96,7 +96,7 @@ jobs:
           printf %s\\n '::set-output name=name::${{ github.workflow }} - ${{ github.job }}'
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}'
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: actions/setup-node@v4
         with:
           node-version: 22
@@ -169,7 +169,7 @@ jobs:
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}'
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/load-test.yml b/.github/workflows/load-test.yml
index 16a783b18..1661d1c39 100644
--- a/.github/workflows/load-test.yml
+++ b/.github/workflows/load-test.yml
@@ -24,7 +24,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
@@ -68,7 +68,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
@@ -139,7 +139,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/perform-type-check.yml b/.github/workflows/perform-type-check.yml
index fb5f6d3c8..6543041f6 100644
--- a/.github/workflows/perform-type-check.yml
+++ b/.github/workflows/perform-type-check.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - uses: actions/setup-node@v4
         with:
           node-version: 20
diff --git a/.github/workflows/rate-limit.yml b/.github/workflows/rate-limit.yml
index 3b3417864..521e007ac 100644
--- a/.github/workflows/rate-limit.yml
+++ b/.github/workflows/rate-limit.yml
@@ -24,7 +24,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9ec1cbdae..52f58012f 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
             repository: ether/etherpad-lite
             path: etherpad
@@ -37,7 +37,7 @@ jobs:
           git checkout develop
           git reset --hard origin/develop
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: ether/ether.github.com
           path: ether.github.com
diff --git a/.github/workflows/upgrade-from-latest-release.yml b/.github/workflows/upgrade-from-latest-release.yml
index a06c098fe..dac366e0e 100644
--- a/.github/workflows/upgrade-from-latest-release.yml
+++ b/.github/workflows/upgrade-from-latest-release.yml
@@ -28,7 +28,7 @@ jobs:
     steps:
       -
         name: Check out latest release
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: develop #FIXME change to master when doing release
       -
@@ -97,7 +97,7 @@ jobs:
       -
         name: Install all dependencies and symlink for ep_etherpad-lite
         run: ./bin/installDeps.sh
-      # Because actions/checkout@v4 is called with "ref: master" and without
+      # Because actions/checkout@v5 is called with "ref: master" and without
       # "fetch-depth: 0", the local clone does not have the ${GITHUB_SHA}
       # commit. Fetch ${GITHUB_REF} to get the ${GITHUB_SHA} commit. Note that a
       # plain "git fetch" only fetches "normal" references (refs/heads/* and
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 3b56b8452..6a1494be1 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -31,7 +31,7 @@ jobs:
             zip
       -
         name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       -
         uses: actions/setup-node@v4
         with: