Building from newer core and releasing minor

Change-Id: I32ed79ae3ef3fc8e585ff1ab1a3ccd5d729981ad
diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index 5ce136e..636f554 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -16,7 +16,7 @@
 
 # xosproject/fabric-crossconnect-synchronizer
 
-FROM xosproject/xos-synchronizer-base:2.1.0
+FROM xosproject/xos-synchronizer-base:2.1.4
 
 COPY xos/synchronizer /opt/xos/synchronizers/fabric-crossconnect
 COPY VERSION /opt/xos/synchronizers/fabric-crossconnect/