diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# 1.2.1.1
+
+- Fix dependency of doctest suite
+
 # 1.2.1
 
 - Add function to trim trailing space in layouted `SimpleDocStream`,
diff --git a/prettyprinter.cabal b/prettyprinter.cabal
--- a/prettyprinter.cabal
+++ b/prettyprinter.cabal
@@ -1,5 +1,5 @@
 name:                prettyprinter
-version:             1.2.1
+version:             1.2.1.1
 cabal-version:       >= 1.10
 category:            User Interfaces, Text
 synopsis:            A modern, easy to use, well-documented, extensible pretty-printer.
@@ -107,6 +107,7 @@
     build-depends:
           base       >= 4.7 && < 5
         , doctest    >= 0.9
+        , QuickCheck
     ghc-options: -Wall -threaded -rtsopts -with-rtsopts=-N
     default-language: Haskell2010
     if impl (ghc < 7.10)