diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 780d14f..105db62 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
     - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: ${{ matrix.python-version }}
     - name: Unit tests
diff --git a/.github/workflows/linters.yml b/.github/workflows/linters.yml
index db51047..dcc0bfb 100644
--- a/.github/workflows/linters.yml
+++ b/.github/workflows/linters.yml
@@ -9,7 +9,7 @@ jobs:
     steps:
       - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Install Python
-        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
           python-version: "3.13"
       - name: Install dependencies
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index c98f77e..104093a 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -11,7 +11,7 @@ jobs:
     steps:
     - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
     - name: Set up Python
-      uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+      uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: "3.x"
     - name: Install pypa/build