diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 71f90c2..7b1e19d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,7 +15,7 @@ jobs:
       matrix:
         python-version: ["3.7", "3.8", "3.9"]
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v3.5.2
       - uses: conda-incubator/setup-miniconda@v2
         with:
           environment-file: ci/environment.yml
@@ -48,7 +48,7 @@ jobs:
     name: upstream-dev
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3.1.0
+      - uses: actions/checkout@v3.5.2
       - uses: conda-incubator/setup-miniconda@v2
         with:
           environment-file: ci/upsteam_dev_env.yml