diff --git a/.github/workflows/release_conda_and_github.yml b/.github/workflows/release_conda_and_github.yml
index 46376f9c..77e0f054 100644
--- a/.github/workflows/release_conda_and_github.yml
+++ b/.github/workflows/release_conda_and_github.yml
@@ -15,7 +15,7 @@ jobs:
   construct-and-release:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
       with:
         fetch-depth: 0
     - name: Setup conda
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index a9949c89..257f4aa0 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -12,7 +12,7 @@ jobs:
         python-version: [3.7, 3.8, 3.9]
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with: