diff --git a/12/alpine/Dockerfile b/12/alpine/Dockerfile
index a805d7ad42..05487ef035 100644
--- a/12/alpine/Dockerfile
+++ b/12/alpine/Dockerfile
@@ -18,8 +18,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 12
-ENV PG_VERSION 12.2
-ENV PG_SHA256 ad1dcc4c4fc500786b745635a9e1eba950195ce20b8913f50345bb7d5369b5de
+ENV PG_VERSION 12.3
+ENV PG_SHA256 94ed64a6179048190695c86ec707cc25d016056ce10fc9d229267d9a8f1dcf41
 
 RUN set -ex \
 	\