diff --git a/.github/workflows/copyrights.yml b/.github/workflows/copyrights.yml
index 472f495cb7..9ff8679939 100644
--- a/.github/workflows/copyrights.yml
+++ b/.github/workflows/copyrights.yml
@@ -7,7 +7,7 @@ jobs:
   copyrights:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Check
       run: |
         ./tools/check_copyrights.sh
diff --git a/.github/workflows/link-check.yml b/.github/workflows/link-check.yml
index cbd153f227..9e1bf9958a 100644
--- a/.github/workflows/link-check.yml
+++ b/.github/workflows/link-check.yml
@@ -8,5 +8,5 @@ jobs:
   markdown-link-check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - uses: gaurav-nelson/github-action-markdown-link-check@v1
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 8dd7d4b8dd..820ab87429 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -9,7 +9,7 @@ jobs:
         language: [python3, java, csharp, r, scala]
     container: ghcr.io/lballabio/quantlib-swig-devenv:${{ matrix.language }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Build and check
       run: |
         ./.build/${{ matrix.language }}.build
diff --git a/.github/workflows/misspell.yml b/.github/workflows/misspell.yml
index 5cbf54c709..b342db5c0d 100644
--- a/.github/workflows/misspell.yml
+++ b/.github/workflows/misspell.yml
@@ -7,7 +7,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - uses: sobolevn/misspell-fixer-action@master
     - uses: peter-evans/create-pull-request@v3
       with:
diff --git a/.github/workflows/namespaces.yml b/.github/workflows/namespaces.yml
index e2ee22abbd..6660d9fa98 100644
--- a/.github/workflows/namespaces.yml
+++ b/.github/workflows/namespaces.yml
@@ -7,7 +7,7 @@ jobs:
   namespaces:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Check
       run: |
         sed -i -e 's/boost::shared_ptr/ext::shared_ptr/g' SWIG/*