diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e2f8fcf1..62c00718 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -47,17 +47,18 @@ jobs:
     - uses: actions/checkout@v4
 
     - name: Setup Micromamba environment
-      uses: mamba-org/provision-with-micromamba@v16
+      uses: mamba-org/setup-micromamba@v1
       with:
-        environment-file: false
         environment-name: ci
-        extra-specs: |
+        create-args: >-
           python=${{ matrix.python-version }}
           root=${{ matrix.root-version }}
           imagemagick
           ghostscript
           pip
-        channels: conda-forge
+        condarc: |
+          channels:
+            - conda-forge
 
     - name: ROOT info
       run: |