diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 37999bf..c9b4acc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,12 +14,12 @@ jobs:
     strategy:
       matrix:
         os: [windows-latest, macos-latest, ubuntu-latest]
-        python-version: [3.9, 3.x]
+        python-version: ['3.9', '3.x']
 
     steps:
     - uses: actions/checkout@v4
 
-    - uses: actions/setup-python@v4
+    - uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
 
diff --git a/.github/workflows/publish-python-package.yml b/.github/workflows/publish-python-package.yml
index 1f86be3..535ada6 100644
--- a/.github/workflows/publish-python-package.yml
+++ b/.github/workflows/publish-python-package.yml
@@ -9,10 +9,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: '3.x'