diff --git a/gui_main.py b/gui_main.py
index 6a06851..40e5bce 100644
--- a/gui_main.py
+++ b/gui_main.py
@@ -11,7 +11,7 @@
 class ResolutionGUI():
     def __init__(self):
         # useful variables
-        self.__version__ = 0.3
+        self.__version__ = 1.0
         self.filename = None
 
         # used to help transfer between subapps