diff --git a/caimira/apps/calculator/__init__.py b/caimira/apps/calculator/__init__.py
index 0bf3a9f3..ee522bde 100644
--- a/caimira/apps/calculator/__init__.py
+++ b/caimira/apps/calculator/__init__.py
@@ -32,7 +32,7 @@ from .user import AuthenticatedUser, AnonymousUser
 # calculator version. If the calculator needs to make breaking changes (e.g. change
 # form attributes) then it can also increase its MAJOR version without needing to
 # increase the overall CAiMIRA version (found at ``caimira.__version__``).
-__version__ = "4.2"
+__version__ = "4.3"
 
 
 class BaseRequestHandler(RequestHandler):