diff --git a/system_test/docker-compose.yml b/system_test/docker-compose.yml
index a758d9b..0578d2e 100644
--- a/system_test/docker-compose.yml
+++ b/system_test/docker-compose.yml
@@ -1,7 +1,7 @@
 version: "3"
 services:
   postgres:
-    image: postgres:13
+    image: postgres:15
     environment:
       - POSTGRES_USER=openslides
       - POSTGRES_PASSWORD=openslides