diff --git a/.github/workflows/package.yml b/.github/workflows/package.yml
index ff1565b..836de4b 100644
--- a/.github/workflows/package.yml
+++ b/.github/workflows/package.yml
@@ -13,7 +13,7 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true
@@ -56,7 +56,7 @@ jobs:
       # IMPORTANT: this permission is mandatory for trusted publishing
       id-token: write
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true
diff --git a/.github/workflows/unittest.yml b/.github/workflows/unittest.yml
index b11c810..902fa68 100644
--- a/.github/workflows/unittest.yml
+++ b/.github/workflows/unittest.yml
@@ -14,7 +14,7 @@ jobs:
       run:
         shell: bash -l {0}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: conda-incubator/setup-miniconda@v3
         with:
           auto-update-conda: true