diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index ea78aab..40c0c14 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -1,6 +1,6 @@
 name: CI
 env:
-  micromamba_version: 1.3
+  micromamba_version: 2.0.0
 
 on:
   push:
@@ -32,19 +32,22 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     steps:
       - name: Cancel Previous Runs
         uses: styfle/cancel-workflow-action@0.12.1
         with:
           access_token: ${{ github.token }}
       - uses: actions/checkout@v4
-      - uses: mamba-org/provision-with-micromamba@main
+      - uses: mamba-org/setup-micromamba@v2
         with:
           environment-name: act-test-data-dev
           environment-file: ci/environment.yml
           extra-specs: |
             python=${{ matrix.python-version }}
+          init-shell: >-
+            bash
+          post-cleanup: "all"
       - name: Fetch all history for all tags and branches
         run: |
            git fetch --prune --unshallow