diff --git a/Dockerfile b/Dockerfile
index aab8e88..fcc30f4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -48,7 +48,7 @@ ENV AUTOVACUUM=on
 ENV UPDATES=enabled
 ENV REPLICATION_URL=https://planet.openstreetmap.org/replication/hour/
 ENV MAX_INTERVAL_SECONDS=3600
-ENV PG_VERSION 19
+ENV PG_VERSION 18
 
 RUN ln -snf "/usr/share/zoneinfo/$TZ" /etc/localtime && echo "$TZ" > /etc/timezone