diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index b2a534b..71d9c0e 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -55,7 +55,7 @@
          uses: actions/checkout@v4
 
        - name: setup micromamba
-         uses: mamba-org/setup-micromamba@v1
+         uses: mamba-org/setup-micromamba@v2
          with:
            environment-file: ${{ matrix.environment-file }}
            micromamba-version: 'latest'