diff --git a/9.3/alpine/Dockerfile b/9.3/alpine/Dockerfile
index e47d8e6e16..12cb52e87a 100644
--- a/9.3/alpine/Dockerfile
+++ b/9.3/alpine/Dockerfile
@@ -22,8 +22,8 @@ ENV LANG en_US.utf8
 RUN mkdir /docker-entrypoint-initdb.d
 
 ENV PG_MAJOR 9.3
-ENV PG_VERSION 9.3.21
-ENV PG_SHA256 b9babc5148188a410e023d7178a5678e989ec2e276498de6cd0028bc331a40e0
+ENV PG_VERSION 9.3.22
+ENV PG_SHA256 1b18ed4aa59bab6283a0d8f3a00b9d896f4588bb2ba88ceef2816cb5c4cce91a
 
 ENV OSSP_UUID_VERSION 1.6.2
 ENV OSSP_UUID_SHA256 11a615225baa5f8bb686824423f50e4427acd3f70d394765bdff32801f0fd5b0