diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2bd0374..3180ffc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python (micromamba)
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: environment-dev.yml
           cache-environment: true
@@ -74,7 +74,7 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Set up Python (micromamba)
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: docs/environment-docs.yml
           cache-environment: true