diff --git a/docker-compose.yml b/docker-compose.yml
index 93165e66..8d3d3fd4 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -60,7 +60,7 @@ services:
             POSTGRES_USER: '${POSTGRES_USER:-postgres}'
             POSTGRES_PASSWORD: '${POSTGRES_PASSWORD:-postgres}'
         healthcheck:
-            test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER}"]
+            test: ["CMD-SHELL", "pg_isready -U '${POSTGRES_USER}'"]
             interval: 10s
     redis:
         image: redis:alpine