diff --git a/pyeit/__init__.py b/pyeit/__init__.py
index 9aca664..cd93412 100644
--- a/pyeit/__init__.py
+++ b/pyeit/__init__.py
@@ -10,5 +10,5 @@
 __author_email__ = "liubenyuan@gmail.com"
 __license__ = "BSD"
 APP_NAME = "pyeit"
-APP_VERSION = "1.1.8"
+APP_VERSION = "1.1.9"
 APP_DESCRIPTION = "A Python Package for EIT"