diff --git a/11/alpine/Dockerfile b/11/alpine/Dockerfile
index ed221b86d0..6c47d4855a 100644
--- a/11/alpine/Dockerfile
+++ b/11/alpine/Dockerfile
@@ -18,8 +18,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 11
-ENV PG_VERSION 11.8
-ENV PG_SHA256 eaf2f4329ccc349c89e950761b81daf8c99bb8966abcab5665ccd6ee95c77ae2
+ENV PG_VERSION 11.9
+ENV PG_SHA256 35618aa72e0372091f923c42389c6febd07513157b4fbb9408371706afbb6635
 
 RUN set -eux; \
 	\