diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7677aea..1c24875 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -24,15 +24,21 @@ jobs:
         with:
           fetch-depth: 0
 
-      - name: Install node
-        uses: actions/setup-node@v4
+      - name: Set conda environment
+        uses: mamba-org/setup-micromamba@main
         with:
-          node-version: 20
+          environment-name: cockle
+          environment-file: environment-dev.yml
+          init-shell: bash
+          cache-downloads: true
 
       - name: Install dependencies
         run: |
           npm install
 
+      - name: Fetch wasm dependencies
+        run: npm run fetch:wasm
+
       - name: Build
         run: |
           npm run build