diff --git a/.github/workflows/gss2022_backend_on_postgres_services.yml b/.github/workflows/gss2022_backend_on_postgres_services.yml
index b753e1c..eb7b147 100644
--- a/.github/workflows/gss2022_backend_on_postgres_services.yml
+++ b/.github/workflows/gss2022_backend_on_postgres_services.yml
@@ -25,7 +25,7 @@ jobs:
         ruby-version: ["3.1"]
     services:
       postgres:
-        image: postgres:15.1
+        image: postgres:15.9
         ports:
           - 5432:5432
         env: