diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7e9aa5b..366671c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,6 +29,10 @@ jobs:
   frontend-build:
     name: Frontend Build
     runs-on: ubuntu-latest
+    env:
+      NEXT_PUBLIC_API_URL: "http://localhost:8000"
+      NEXT_PUBLIC_SUPABASE_URL: "https://example.supabase.co"
+      NEXT_PUBLIC_SUPABASE_ANON_KEY: "test-key"
     defaults:
       run:
         working-directory: frontend