diff --git a/hscaffold.cabal b/hscaffold.cabal
--- a/hscaffold.cabal
+++ b/hscaffold.cabal
@@ -3,7 +3,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           hscaffold
-version:        0.4.4.0
+version:        0.4.5.0
 synopsis:       Very simple file/directory structure scaffolding writer monad EDSL
 description:     See our README on GitHub at <https://github.com/yamadapc/hscaffold> 
 homepage:       https://github.com/yamadapc/hscaffold#readme
@@ -26,7 +26,7 @@
 
 library
   build-depends:
-      base >=4.8 && <4.9
+      base >=4.8 && <5
     , text
     , mtl
     , transformers
@@ -55,7 +55,7 @@
   hs-source-dirs:
       bin
   build-depends:
-      base >=4.8 && <4.9
+      base >=4.8 && <5
     , text
     , mtl
     , transformers
@@ -74,7 +74,7 @@
   hs-source-dirs:
       test
   build-depends:
-      base >=4.8 && <4.9
+      base >=4.8 && <5
     , text
     , mtl
     , transformers