diff --git a/12/alpine/Dockerfile b/12/alpine/Dockerfile
index b01912e82e..1b6ee3f29d 100644
--- a/12/alpine/Dockerfile
+++ b/12/alpine/Dockerfile
@@ -22,8 +22,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 12
-ENV PG_VERSION 12beta1
-ENV PG_SHA256 203e2d0151d75e3328a6b6b85eae88e50168ae27423b39787cea595365da9fad
+ENV PG_VERSION 12beta2
+ENV PG_SHA256 1738da8e1e59d4f2dc69c216e67100c6d4dad46714cf597cc2db66077204d31f
 
 RUN set -ex \
 	\