diff --git a/9.4/alpine/Dockerfile b/9.4/alpine/Dockerfile
index 9bd6e54643..c8799ae68e 100644
--- a/9.4/alpine/Dockerfile
+++ b/9.4/alpine/Dockerfile
@@ -22,8 +22,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 9.4
-ENV PG_VERSION 9.4.19
-ENV PG_SHA256 03776b036b2a05371083558e10c21cc4b90bde9eb3aff60299c4ce7c084c168b
+ENV PG_VERSION 9.4.20
+ENV PG_SHA256 eeb1d8ddb2854c9e4d8b5cbd65665260c0ae8cbcb911003f24c2d82ccb97f87f
 
 RUN set -ex \
 	\