diff --git a/typed-spreadsheet.cabal b/typed-spreadsheet.cabal
--- a/typed-spreadsheet.cabal
+++ b/typed-spreadsheet.cabal
@@ -1,5 +1,5 @@
 Name: typed-spreadsheet
-Version: 1.1.4
+Version: 1.1.5
 Cabal-Version: >=1.8.0.2
 Build-Type: Simple
 License: BSD3
@@ -38,7 +38,7 @@
         diagrams-gtk   >= 1.3    && < 1.5 ,
         diagrams-lib   >= 1.3    && < 1.5 ,
         foldl          >= 1.1    && < 1.5 ,
-        gtk            >= 0.13   && < 0.15,
+        gtk            >= 0.13   && < 0.16,
         microlens                   < 0.5 ,
         stm                         < 2.6 ,
         text                        < 1.3 ,