diff --git a/main.c b/main.c
index c060d3a..677f7ea 100644
--- a/main.c
+++ b/main.c
@@ -59,7 +59,7 @@ int fd;
 int UPCASE=0;
 int count_value=0;
 int getPayloadTime=120*1000;//usecond
-char softwareVersion[16]="1.1.19";
+char softwareVersion[16]="1.1.20";
 char stationsn[16]="TJ251372224247";//TJ250995217957
 char productid[8]="10045";
 char appKey[32]="fdhQmhqhvbL1cf1K9mUqt";