diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 0a0837f..c517be5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,6 +20,19 @@ jobs:
     steps:
       - name: Check out source code
         uses: actions/checkout@v2
+
+      - name: Setup miniconda
+        uses: conda-incubator/setup-miniconda@v2
+        with:
+          activate-environment: z5-build-env
+          auto-update-conda: true
+          channels: conda-forge
+          environment-file: .github/workflows/environment.yaml
+          python-version: 3.7
+          auto-activate-base: false
+        env:
+          ACTIONS_ALLOW_UNSECURE_COMMANDS: true
+
       - name: Download Internet
         run: npm install
       - name: Enable Developer Command Prompt