diff --git a/.github/workflows/build_and_publish.yml b/.github/workflows/build_and_publish.yml
index 667f4fb6..86f336dd 100644
--- a/.github/workflows/build_and_publish.yml
+++ b/.github/workflows/build_and_publish.yml
@@ -12,7 +12,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
       - name: Set up Python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: "3.x"
       - name: Install pypa/build
diff --git a/.github/workflows/coverage_and_lint.yml b/.github/workflows/coverage_and_lint.yml
index 2964b66e..bdf4ef69 100644
--- a/.github/workflows/coverage_and_lint.yml
+++ b/.github/workflows/coverage_and_lint.yml
@@ -26,7 +26,7 @@ jobs:
 
       - name: "Setup Python @ ${{ matrix.python-version }}"
         id: setup-python
-        uses: actions/setup-python@v6
+        uses: actions/setup-python@v6.3.0
         with:
           python-version: "${{ matrix.python-version }}"
           cache: "pip"