diff --git a/10/alpine/Dockerfile b/10/alpine/Dockerfile
index 6eb15ca9ce..8f72372336 100644
--- a/10/alpine/Dockerfile
+++ b/10/alpine/Dockerfile
@@ -22,8 +22,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 10
-ENV PG_VERSION 10beta4
-ENV PG_SHA256 e70ffa84d439033533279ccb3ae7beaa0278585b2b176a767bcd0cbddb1252d2
+ENV PG_VERSION 10rc1
+ENV PG_SHA256 ebdb44dccb64a31c9c524f996121e7d58c21045826d6c36e3a5ea46afbb2445b
 
 RUN set -ex \
 	\