diff --git a/README b/README
index 53fcc5524..8d7ea319e 100644
--- a/README
+++ b/README
@@ -38,11 +38,12 @@ Requirements
 
 Gnofract 4D requires these packages to run:
 
-o Python version 2.6 or higher
-o PyGTK version 2.12 or higher
-o GTK+ version 2.0 or higher
+o Python version 3.5 or higher
+o GTK version 3.18 or higher
 o A C++ compiler
 
+Ubuntu 16.04 or newer releases should work.
+
 If you're not sure if you have these or not, just try running
 "./setup.py build" and see if it complains.