diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 49614d4..79e42e9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -27,7 +27,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Install Conda environment with Micromamba
-      uses: mamba-org/setup-micromamba
+      uses: mamba-org/setup-micromamba@v1
       with:
         environment-name: ipycanvas-dev
         environment-file: dev-environment.yml
@@ -49,7 +49,7 @@ jobs:
       uses: actions/checkout@v4
 
     - name: Install Conda environment with Micromamba
-      uses: mamba-org/setup-micromamba
+      uses: mamba-org/setup-micromamba@v1
       with:
         environment-name: ipycanvas-dev
         environment-file: dev-environment.yml
@@ -89,7 +89,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Install Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba
+        uses: mamba-org/setup-micromamba@v1
         with:
           environment-name: ipycanvas-dev
           environment-file: dev-environment.yml
diff --git a/.github/workflows/update_galata_references.yml b/.github/workflows/update_galata_references.yml
index 5d778c9..8e81d17 100644
--- a/.github/workflows/update_galata_references.yml
+++ b/.github/workflows/update_galata_references.yml
@@ -41,7 +41,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Install Conda environment with Micromamba
-        uses: mamba-org/setup-micromamba
+        uses: mamba-org/setup-micromamba@v1
         with:
           environment-name: ipycanvas-dev
           environment-file: dev-environment.yml