diff --git a/VERSION b/VERSION
index 1cc5f65..867e524 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.1.0
\ No newline at end of file
+1.2.0
\ No newline at end of file
diff --git a/sdk/include/alibabacloud/oss/Config.h b/sdk/include/alibabacloud/oss/Config.h
index 0adbadc..759663f 100644
--- a/sdk/include/alibabacloud/oss/Config.h
+++ b/sdk/include/alibabacloud/oss/Config.h
@@ -17,7 +17,7 @@
 #pragma once
 
 // version = (major << 16) + (minor << 8) + patch
-#define ALIBABACLOUD_OSS_VERSION ((1 << 16) + (1 << 8) + 0)
+#define ALIBABACLOUD_OSS_VERSION ((1 << 16) + (2 << 8) + 0)
 
-#define ALIBABACLOUD_OSS_VERSION_STR "1.1.0"
+#define ALIBABACLOUD_OSS_VERSION_STR "1.2.0"