diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 715e926e..09623813 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: '3.13'
 
diff --git a/.github/workflows/coverage-main.yml b/.github/workflows/coverage-main.yml
index eabb70e9..aa16fa08 100644
--- a/.github/workflows/coverage-main.yml
+++ b/.github/workflows/coverage-main.yml
@@ -35,7 +35,7 @@ jobs:
         uses: actions/checkout@v7
 
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: '3.13'