diff --git a/Makefile b/Makefile
index f69d613197fc1f07936c0d5040dd080e1a76037f..f1cf54d05fb54c3b89f8d7ac9c77d1344ff212d8 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-V=20171108
+V=20180528
 
 PREFIX = /usr/local