diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index 4bf1c90d9..3c33bfa94 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -55,7 +55,7 @@ jobs:
     - name: install micromamba
       uses: mamba-org/setup-micromamba@v1
       with:
-        micromamba-version: 1.1.0-1
+        micromamba-version: 1.5.8-0
         environment-name: vaex-dev
         environment-file: ci/conda-env.yml
         create-args: >-