diff --git a/docker/1.6/Dockerfile b/docker/1.6/Dockerfile
index 04c9958750..496848e154 100644
--- a/docker/1.6/Dockerfile
+++ b/docker/1.6/Dockerfile
@@ -3,8 +3,8 @@ FROM alpine:3.8
 LABEL maintainer="Roger Light <roger@atchoo.org>" \
     description="Eclipse Mosquitto MQTT Broker"
 
-ENV VERSION=1.6.2 \
-    DOWNLOAD_SHA256=33499e78dfa0ca1cb488fd196fde940a66305bdfd44ba763ce2001db2569a08b \
+ENV VERSION=1.6.3 \
+    DOWNLOAD_SHA256=9ef5cc75f4fe31d7bf50654ddf4728ad9e1ae2e5609a4b42ecbbcb4a209ed17e \
     GPG_KEYS=A0D6EEA1DCAE49A635A3B2F0779B22DFB3E717B7 \
     LWS_VERSION=2.4.2