diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 4759145..5462cce 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -40,7 +40,7 @@ jobs:
 
       - name: Install dependencies
         if: ${{ matrix.toolkit == true }}
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: devtools/conda-envs/test_env.yaml
           create-args: >-
@@ -48,7 +48,7 @@ jobs:
 
       - name: Install dependencies
         if: ${{ matrix.toolkit == false }}
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: devtools/conda-envs/test_no_toolkit.yaml
           create-args: >-
diff --git a/.github/workflows/canary.yaml b/.github/workflows/canary.yaml
index bd6b629..4bdc844 100644
--- a/.github/workflows/canary.yaml
+++ b/.github/workflows/canary.yaml
@@ -38,7 +38,7 @@ jobs:
 
       - name: Install conda environment
         if: ${{ env.new_off_xml == 'true' }}
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v3
         with:
           environment-file: devtools/conda-envs/canary_env.yaml
           create-args: >-