diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 170de91..85b4285 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
 
     services:
       postgres:
-        image: postgres:latest
+        image: postgres:11
         env:
           POSTGRES_USER: postgres
           POSTGRES_PASSWORD: postgres