diff --git a/.github/workflows/build_and_upload.yml b/.github/workflows/build_and_upload.yml
index dbe6048..8545b19 100644
--- a/.github/workflows/build_and_upload.yml
+++ b/.github/workflows/build_and_upload.yml
@@ -21,7 +21,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v3
+        uses: pypa/cibuildwheel@v3.4.0
         # env:
         #   CIBW_SOME_OPTION: value
         #   ...
diff --git a/.github/workflows/hunt_refleaks.yml b/.github/workflows/hunt_refleaks.yml
index 53f0196..27485e7 100644
--- a/.github/workflows/hunt_refleaks.yml
+++ b/.github/workflows/hunt_refleaks.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Check for refleaks
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v6
       - uses: deadsnakes/action@v3.2.0
         with:
           python-version: 3.11-dev
diff --git a/.github/workflows/run_python_package_tests.yml b/.github/workflows/run_python_package_tests.yml
index b5ce270..3964ee2 100644
--- a/.github/workflows/run_python_package_tests.yml
+++ b/.github/workflows/run_python_package_tests.yml
@@ -18,9 +18,9 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Check out repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python-version }}
       - name: Build package