diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 006cb9d..1fe4a2c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,9 +32,9 @@ jobs:
         - '3.14'
 
     steps:
-    - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
-    - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
+    - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1
       with:
         python-version: ${{ matrix.python-version }}
         allow-prereleases: true
@@ -61,9 +61,9 @@ jobs:
     needs: tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1
         with:
           python-version: '3.13'
 
diff --git a/.github/workflows/pypi-publish.yml b/.github/workflows/pypi-publish.yml
index 6e5b913..c57599c 100644
--- a/.github/workflows/pypi-publish.yml
+++ b/.github/workflows/pypi-publish.yml
@@ -18,10 +18,10 @@ jobs:
     if: github.repository == 'dalito/ucumvert'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
 
       - name: Set up Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1
         with:
           python-version: 3.13