diff --git a/library.properties b/library.properties
index 709823a..7e6bf36 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=M5Core2
-version=0.2.0
+version=0.1.9
 author=M5Stack
 maintainer=M5Stack
 sentence=Library for M5Stack Core2 development kit