diff --git a/requirements-gui.txt b/requirements-gui.txt
index 7101072ae7c..8e74d6a63c8 100644
--- a/requirements-gui.txt
+++ b/requirements-gui.txt
@@ -1,5 +1,5 @@
-orange-canvas-core>=0.1.7,<0.2a
-orange-widget-base>=4.1.0
+orange-canvas-core>=0.1.8,<0.2a
+orange-widget-base>=4.2.0a
 
 # PyQt4/PyQt5 compatibility
 AnyQt>=0.0.8