diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 94b03ba73..f830c8dd8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -30,7 +30,7 @@ jobs:
           - 64
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Install dependencies (macOS only!)"
         if: ${{ runner.os == 'macOS' }}
         run: brew install automake
@@ -73,7 +73,7 @@ jobs:
      env:
        CHERE_INVOKING: 1
      steps:
-       - uses: actions/checkout@v2
+       - uses: actions/checkout@v4
        - name: "Setup cygwin"
          uses: gap-actions/setup-cygwin@v1
        - name: "Setup GAP for cygwin"
diff --git a/.github/workflows/clang-format-check.yml b/.github/workflows/clang-format-check.yml
index 755ac9b09..03c1219a8 100644
--- a/.github/workflows/clang-format-check.yml
+++ b/.github/workflows/clang-format-check.yml
@@ -15,7 +15,7 @@ jobs:
     name: Formatting check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: "Run clang-format style checks on src/*.[hc]pp . . ."
       uses: jidicula/clang-format-action@v4.11.0
       with:
diff --git a/.github/workflows/codespell.yml b/.github/workflows/codespell.yml
index 2d81dc648..6c48a057f 100644
--- a/.github/workflows/codespell.yml
+++ b/.github/workflows/codespell.yml
@@ -4,5 +4,5 @@ jobs:
   codespell:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: codespell-project/actions-codespell@v2.0
diff --git a/.github/workflows/config-options.yml b/.github/workflows/config-options.yml
index ba7ad3c97..626a1863f 100644
--- a/.github/workflows/config-options.yml
+++ b/.github/workflows/config-options.yml
@@ -13,7 +13,7 @@ jobs:
       GAPBRANCH: "stable-4.12"
       ABI: 64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Setup ccache"
         uses: Chocobo1/setup-ccache-action@v1
         with:
@@ -47,7 +47,7 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Install conda environment from environment.yml . . ."
         uses: mamba-org/setup-micromamba@v1
         with:
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 814f6f14d..131aa5962 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -14,7 +14,7 @@ jobs:
   gaplint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Install dependencies . . ."
         run: sudo pip install gaplint==1.1.3
       - name: "Run gaplint . . ."
@@ -23,7 +23,7 @@ jobs:
   cpplint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
       - run: pip install cpplint
       - run: bash etc/cpplint.sh
diff --git a/.github/workflows/manual.yml b/.github/workflows/manual.yml
index cdcab55ee..098a9c5dc 100644
--- a/.github/workflows/manual.yml
+++ b/.github/workflows/manual.yml
@@ -15,7 +15,7 @@ jobs:
     name: "compile and upload manual"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Install TeX Live"
         run: |
           packages=(
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 4ff89913b..6ce5cf794 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -29,7 +29,7 @@ jobs:
             ABI: 64
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: "Install dependencies (macOS only!)"
         if: ${{ runner.os == 'macOS' }}
         run: brew install automake
diff --git a/.github/workflows/workspaces.yml b/.github/workflows/workspaces.yml
index a529fa647..b448b43ec 100644
--- a/.github/workflows/workspaces.yml
+++ b/.github/workflows/workspaces.yml
@@ -32,7 +32,7 @@ jobs:
       steps:
           - name: "Checkout the Semigroups GAP package"
 
-            uses: actions/checkout@v3
+            uses: actions/checkout@v4
           - name: "Install git + autotools"
             run: |
               sudo apt-get --yes update