diff --git a/.github/workflows/test-conda-installs.yml b/.github/workflows/test-conda-installs.yml
index 8705517..1de2128 100644
--- a/.github/workflows/test-conda-installs.yml
+++ b/.github/workflows/test-conda-installs.yml
@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: conda-incubator/setup-miniconda@v2
         with:
-          miniconda-version: "latest"
+          python-version: "3.9"
           miniforge-variant: Mambaforge
           channels: astrobiomike,conda-forge,bioconda,defaults
           channel-priority: true