diff --git a/xmonad-masser.cabal b/xmonad-masser.cabal
index ceda6f8..708bdbd 100644
--- a/xmonad-masser.cabal
+++ b/xmonad-masser.cabal
@@ -25,7 +25,7 @@ library
                     , XMonad.TopicSpace
                     , XMonad.XMobar
   -- other-extensions:
-  build-depends:       base >=4.11 && <4.13
+  build-depends:       base >=4.11 && <4.14
                      , xmonad
                      , xmonad-contrib
                      , mtl