diff --git a/build.py b/build.py
index 1b9b08f..494fc2c 100644
--- a/build.py
+++ b/build.py
@@ -1,7 +1,7 @@
 import os
 import shutil
 
-version = "4.2.0"
+version = "4.3.1"
 dir_path = os.path.dirname(os.path.realpath(__file__))
 build_path = os.path.join(dir_path,  "build")
 os.makedirs(build_path)