diff --git a/setup.cfg b/setup.cfg
index a354ba4..6b4bca4 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = pywincalc
-version = 3.3.1
+version = 3.4.0
 description = A Python library for calculating thermal and optical properties of glazing systems
 long_description = file: README.md
 long_description_content_type = text/markdown; charset=UTF-8