diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 4f6234e..7caba0c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -35,7 +35,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - uses: actions/checkout@v6
-      - uses: mamba-org/setup-micromamba@v2
+      - uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: environment.yml
       - run: ./tools/extract_version.sh
@@ -86,7 +86,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - uses: actions/checkout@v6
-      - uses: mamba-org/setup-micromamba@v2
+      - uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: environment.yml
       - run: ./tools/extract_version.sh
@@ -112,7 +112,7 @@ jobs:
         shell: bash -el {0}
     steps:
       - uses: actions/checkout@v6
-      - uses: mamba-org/setup-micromamba@v2
+      - uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: environment.yml
       # https://nsis.sourceforge.io/Download