diff --git a/hspec-wai.cabal b/hspec-wai.cabal
--- a/hspec-wai.cabal
+++ b/hspec-wai.cabal
@@ -1,13 +1,11 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.34.2.
+-- This file has been generated from package.yaml by hpack version 0.34.3.
 --
 -- see: https://github.com/sol/hpack
---
--- hash: 95ac20c61059693bdcf5f029efee11023def65f62809fe31970937f20f996855
 
 name:             hspec-wai
-version:          0.11.0
+version:          0.11.1
 homepage:         https://github.com/hspec/hspec-wai#readme
 bug-reports:      https://github.com/hspec/hspec-wai/issues
 license:          MIT
diff --git a/src/Test/Hspec/Wai/Util.hs b/src/Test/Hspec/Wai/Util.hs
--- a/src/Test/Hspec/Wai/Util.hs
+++ b/src/Test/Hspec/Wai/Util.hs
@@ -12,8 +12,8 @@
 import qualified Data.ByteString as B
 import qualified Data.ByteString.Char8 as B8
 import qualified Data.ByteString.Lazy as LB
-import           Data.ByteString.Lazy.Builder (Builder)
-import qualified Data.ByteString.Lazy.Builder as Builder
+import           Data.ByteString.Builder (Builder)
+import qualified Data.ByteString.Builder as Builder
 import qualified Data.Text as T
 import qualified Data.Text.Encoding as T
 import qualified Data.CaseInsensitive as CI