diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 1c7820cbc..cd75ebf54 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -71,7 +71,7 @@ jobs:
           fi
 
       - name: Install environment with ${{ env.JOBNAME }}
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: devtools/conda-envs/${{ env.ENVFILE }}.yaml
           create-args: >-
diff --git a/.github/workflows/beta_rc.yaml b/.github/workflows/beta_rc.yaml
index e94e23d59..70c474d95 100644
--- a/.github/workflows/beta_rc.yaml
+++ b/.github/workflows/beta_rc.yaml
@@ -32,7 +32,7 @@ jobs:
           fetch-depth: 0
 
       - name: Install environment
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: devtools/conda-envs/test_env.yaml
           condarc: |
diff --git a/.github/workflows/conda.yml b/.github/workflows/conda.yml
index e5b25b3cd..e4d9340ca 100644
--- a/.github/workflows/conda.yml
+++ b/.github/workflows/conda.yml
@@ -35,7 +35,7 @@ jobs:
       - uses: actions/checkout@v6
 
       - name: Vanilla install from conda
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         if: ${{ matrix.openeye == 'false' }}
         with:
           environment-file: devtools/conda-envs/conda.yaml
@@ -43,7 +43,7 @@ jobs:
             python=${{ matrix.python-version }}
 
       - name: Install from conda with OpenEye
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         if: ${{ matrix.openeye == 'true' }}
         with:
           environment-file: devtools/conda-envs/conda_oe.yaml
diff --git a/.github/workflows/examples.yml b/.github/workflows/examples.yml
index e7801ac6d..5a8eae0f0 100644
--- a/.github/workflows/examples.yml
+++ b/.github/workflows/examples.yml
@@ -62,7 +62,7 @@ jobs:
           fi
 
       - name: Install conda environment with ${{ env.ENVFILE }}
-        uses: mamba-org/setup-micromamba@v2
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: devtools/conda-envs/${{env.ENVFILE}}-examples.yaml
           create-args: >-