diff --git a/toughio/__about__.py b/toughio/__about__.py
index 8b3fe72b..b3f68ba2 100644
--- a/toughio/__about__.py
+++ b/toughio/__about__.py
@@ -1,4 +1,4 @@
-__version__ = "1.9.1"
+__version__ = "1.9.2"
 __author__ = "Keurfon Luu"
 __author_email__ = "keurfonluu@lbl.gov"
 __website__ = "https://github.com/keurfonluu/toughio"