SEBA-405 Update VOLT Service to use synchronizer library

Change-Id: I8292e0e7d1b7c76b1e53d9bd944abf95d9b38333
diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index 9c33c28..ebd6c2e 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -16,7 +16,7 @@
 
 # xosproject/volt-synchronizer
 
-FROM xosproject/xos-synchronizer-base:2.1.32
+FROM xosproject/xos-synchronizer-base:2.1.38
 
 COPY xos/synchronizer /opt/xos/synchronizers/volt
 COPY VERSION /opt/xos/synchronizers/volt/