diff --git a/lib/BUCK b/lib/BUCK
index 3ae6307..ae448ab 100644
--- a/lib/BUCK
+++ b/lib/BUCK
@@ -1,4 +1,4 @@
-# ***** This file was auto-generated at Sat, 21 Apr 2018 05:05:33 GMT. Do not edit this file manually. *****
+# ***** This file was auto-generated at Tue, 15 May 2018 07:54:13 GMT. Do not edit this file manually. *****
 # ***** Use onos-lib-gen *****
 
 pass_thru_pom(
@@ -207,10 +207,10 @@
 
 remote_jar (
   name = 'atomix',
-  out = 'atomix-2.0.20.jar',
-  url = 'mvn:io.atomix:atomix:jar:2.0.20',
-  sha1 = '7039de42423b8cd80d6a99208d61f7ee7ec52e50',
-  maven_coords = 'io.atomix:atomix:2.0.20',
+  out = 'atomix-2.0.21.jar',
+  url = 'mvn:io.atomix:atomix:jar:2.0.21',
+  sha1 = 'f16ab1461c7e53381d10f5c736ed9ed8236f714a',
+  maven_coords = 'io.atomix:atomix:2.0.21',
   visibility = [ 'PUBLIC' ],
 )