diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 6ddef7c5..5346f2b8 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -21,7 +21,7 @@ jobs:
           fetch-depth: 0
 
       - name: Setup environment
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: requirements.txt
           environment-name: dolphin
diff --git a/.github/workflows/test-build-push.yml b/.github/workflows/test-build-push.yml
index e88c8ae0..cd1804bb 100644
--- a/.github/workflows/test-build-push.yml
+++ b/.github/workflows/test-build-push.yml
@@ -32,7 +32,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup environment
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: conda-env.yml
           environment-name: dolphin-env
diff --git a/.github/workflows/update-sample-config.yaml b/.github/workflows/update-sample-config.yaml
index 250be98e..56551cfa 100644
--- a/.github/workflows/update-sample-config.yaml
+++ b/.github/workflows/update-sample-config.yaml
@@ -17,7 +17,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
       - name: Setup environment
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v2
         with:
           environment-file: conda-env.yml
           environment-name: dolphin-env