diff --git a/ops/compose.ci-test.yml b/ops/compose.ci-test.yml
index cec7174a..e4e4bc33 100644
--- a/ops/compose.ci-test.yml
+++ b/ops/compose.ci-test.yml
@@ -3,7 +3,12 @@ version: '3.8'
 services:
   backend:
     image: ${backend_image}
-    command: tests
+    command:
+      - /bin/bash
+      - -c
+      - |
+        pdm init
+        pdm run coverage
     environment:
       - SECRET_KEY=secret-key
       - DATABASE_URL=postgres://postgres:postgres@db:5432/postgres