diff --git a/.github/workflows/run-tests.yaml b/.github/workflows/run-tests.yaml
index 67a4203..999a5fe 100644
--- a/.github/workflows/run-tests.yaml
+++ b/.github/workflows/run-tests.yaml
@@ -51,7 +51,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - name: Set up Conda env
-        uses: mamba-org/setup-micromamba@8767fb704bd78032e9392f0386bf46950bdd1194
+        uses: mamba-org/setup-micromamba@422500192359a097648154e8db4e39bdb6c6eed7
         with:
           environment-name: myenv
           cache-environment: true