diff --git a/.github/workflows/sphinx-to-gh-pages.yaml b/.github/workflows/sphinx-to-gh-pages.yaml
index 7aad985..ed9a8f7 100644
--- a/.github/workflows/sphinx-to-gh-pages.yaml
+++ b/.github/workflows/sphinx-to-gh-pages.yaml
@@ -23,7 +23,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba@068f1ab4b37ed9b3d9f73da7db90a0cda0a48d29
+        uses: mamba-org/setup-micromamba@0dea6379afdaffa5d528b3d1dabc45da37f443fc
         with:
            environment-file: envs/environment-gh-pages.yaml
            environment-name: numeric-gh-pages