diff --git a/11/alpine/Dockerfile b/11/alpine/Dockerfile
index fe9d090a02..2bf84e901c 100644
--- a/11/alpine/Dockerfile
+++ b/11/alpine/Dockerfile
@@ -22,8 +22,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 11
-ENV PG_VERSION 11.5
-ENV PG_SHA256 7fdf23060bfc715144cbf2696cf05b0fa284ad3eb21f0c378591c6bca99ad180
+ENV PG_VERSION 11.6
+ENV PG_SHA256 49924f7ff92965fdb20c86e0696f2dc9f8553e1563124ead7beedf8910c13170
 
 RUN set -ex \
 	\