diff --git a/sifflet.cabal b/sifflet.cabal
--- a/sifflet.cabal
+++ b/sifflet.cabal
@@ -1,5 +1,5 @@
 name: sifflet
-version: 1.2.1
+version: 1.2.2
 cabal-version: >= 1.8
 build-type: Simple
 license: BSD3
@@ -17,7 +17,8 @@
   Sifflet show the intermediate steps of the computation
   on the diagram, and can expand function calls to show further details.
   It is intended as an aid for learning about recursion.
-  Version 1.2.1: updated for compatibility with gtk-0.12.
+  Version 1.2.2: Safely quits when main (workspace) window is closed.
+  Version 1.2.1: Updated for compatibility with gtk-0.12.
 category: 
   Language 
   , Visual Programming
@@ -48,7 +49,7 @@
     hxt >= 9 && < 9.1,
     mtl >= 1.1 && < 1.2,
     process >= 1.0 && < 1.1,
-    sifflet-lib >= 1.2.1
+    sifflet-lib >= 1.2.2
 
   if !os(windows)
     build-depends: unix >= 2.3 && < 2.5