diff --git a/Dockerfile.synchronizer b/Dockerfile.synchronizer
index edf0cef..fb57a4a 100644
--- a/Dockerfile.synchronizer
+++ b/Dockerfile.synchronizer
@@ -16,7 +16,7 @@
 
 # xosproject/volt-synchronizer
 
-FROM xosproject/xos-synchronizer-base:2.1.21
+FROM xosproject/xos-synchronizer-base:2.1.22
 
 COPY xos/synchronizer /opt/xos/synchronizers/volt
 COPY VERSION /opt/xos/synchronizers/volt/
diff --git a/VERSION b/VERSION
index 04b10b4..ebf14b4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.7
+2.1.8