diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 1fb0f83..3629c82 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -25,7 +25,7 @@ jobs:
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup Conda Environment
         uses: conda-incubator/setup-miniconda@v2
diff --git a/.github/workflows/deploy-sdist.yaml b/.github/workflows/deploy-sdist.yaml
index a32d6a5..89b4357 100644
--- a/.github/workflows/deploy-sdist.yaml
+++ b/.github/workflows/deploy-sdist.yaml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Create sdist
         shell: bash -l {0}