diff --git a/tyro.cabal b/tyro.cabal
--- a/tyro.cabal
+++ b/tyro.cabal
@@ -1,5 +1,5 @@
 name:                tyro
-version:             0.1.1.0
+version:             0.1.1.1
 synopsis:            Type derived JSON parsing using Aeson
 description:
     A library for deriving JSON parsers (using Aeson) by indicating
@@ -20,7 +20,7 @@
   ghc-options:         -Wall
   exposed-modules:     Data.Tyro
   other-modules:       Lib.Prelude
-  build-depends:       base >= 4.7 && < 5
+  build-depends:       base >= 4.9 && < 5
                      , protolude >= 0.1.6 && < 0.2
                      , aeson
                      , text