diff --git a/.github/workflows/testMaps.yml b/.github/workflows/testMaps.yml
index 3e4480e92..6387eca7d 100644
--- a/.github/workflows/testMaps.yml
+++ b/.github/workflows/testMaps.yml
@@ -25,9 +25,12 @@ jobs:
           environment-file: tests/test_env.yml
 
           # use mamba to speed up installation
-          mamba-version: "*"
-          channels: conda-forge
-          channel-priority: true
+          #mamba-version: "*"
+          #channels: conda-forge
+          #channel-priority: true
+
+          miniforge-variant: Mambaforge
+          miniforge-version: latest
 
           activate-environment: testMaps