diff --git a/email-validate.cabal b/email-validate.cabal
--- a/email-validate.cabal
+++ b/email-validate.cabal
@@ -1,59 +1,60 @@
-name: email-validate
-version: 2.3
-cabal-version: >=1.10
-build-type: Simple
-license: BSD3
-license-file: LICENSE
-maintainer: George Pollard <porges@porg.es>
-stability: experimental
-homepage: https://github.com/Porges/email-validate-hs
-synopsis: Email address validation
-description:
-    Validating an email address string against RFC 5322
-category: Text
-author: George Pollard <porges@porg.es>
-
-source-repository head
-    type: git
-    location: git://github.com/Porges/email-validate-hs.git
-
-source-repository this
-    type: git
-    location: git://github.com/Porges/email-validate-hs.git
-    tag: v2.3
-
-library
-    exposed-modules:
-        Text.Email.QuasiQuotation
-        Text.Email.Validate
-        Text.Email.Parser
-    build-depends:
-        base >=4.4 && <5,
-        attoparsec >=0.10.0 && <0.14,
-        bytestring >=0.9 && <0.11,
-        template-haskell >=2.11.1.0 && <2.12
-    default-language: Haskell2010
-    hs-source-dirs: src
-    ghc-options: -Wall
-
-test-suite Main
-    type: exitcode-stdio-1.0
-    main-is: Main.hs
-    build-depends:
-        email-validate ==2.3.*,
-        base ==4.*,
-        hspec >=2.4.3 && <2.5,
-        QuickCheck >=2.4 && <2.11,
-        bytestring >=0.9 && <0.11
-    default-language: Haskell2010
-    hs-source-dirs: tests
-    ghc-options: -threaded
-test-suite doctests
-    type: exitcode-stdio-1.0
-    main-is: doctests.hs
-    build-depends:
-        base >=4.9.1.0 && <4.10,
-        doctest >=0.8 && <0.12
-    default-language: Haskell2010
-    hs-source-dirs: tests
-    ghc-options: -threaded
+name:           email-validate
+version:        2.3.1
+license:        BSD3
+license-file:   LICENSE
+author:         George Pollard <porges@porg.es>
+maintainer:     George Pollard <porges@porg.es>
+homepage:       https://github.com/Porges/email-validate-hs
+category:       Text
+synopsis:       Email address validation
+description:    Validating an email address string against RFC 5322
+build-type:     Simple
+stability:      experimental
+cabal-version:  >= 1.10
+
+source-repository head
+    type: git
+    location: git://github.com/Porges/email-validate-hs.git
+
+source-repository this
+    type: git
+    location: git://github.com/Porges/email-validate-hs.git
+    tag: v2.3.1
+
+library
+    build-depends:
+        base >= 4.4 && < 5,
+        attoparsec >= 0.10.0 && < 0.14,
+        bytestring >= 0.9 && < 0.11,
+        template-haskell >= 2.10.0.0 && < 2.13
+    default-language: Haskell2010
+    hs-source-dirs: src
+    ghc-options: -Wall
+    exposed-modules:
+        Text.Email.QuasiQuotation,
+        Text.Email.Validate,
+        Text.Email.Parser
+
+test-suite Main
+    type: exitcode-stdio-1.0
+    main-is: Main.hs
+    ghc-options: -threaded
+    hs-source-dirs: tests
+    default-language: Haskell2010
+    build-depends:
+        email-validate,
+        base >= 4 && < 5,
+        hspec >= 2.2.3 && < 2.5,
+        QuickCheck >= 2.4 && < 2.11,
+        bytestring >= 0.9 && < 0.11
+
+test-suite doctests
+    type: exitcode-stdio-1.0
+    ghc-options: -threaded
+    default-language: Haskell2010
+    hs-source-dirs: tests
+    main-is: doctests.hs
+    build-depends:
+        base >= 4 && < 5,
+        doctest >= 0.8 && < 0.13
+
diff --git a/src/Text/Email/Validate.hs b/src/Text/Email/Validate.hs
--- a/src/Text/Email/Validate.hs
+++ b/src/Text/Email/Validate.hs
@@ -26,6 +26,7 @@
 
 -- $setup
 -- This is required for all examples:
+--
 -- >>> :set -XOverloadedStrings
 
 -- | Smart constructor for an email address
@@ -36,6 +37,7 @@
 --   where comments and whitespace have been removed.
 --
 -- Example:
+--
 -- >>> canonicalizeEmail "spaces. are. allowed@example.com"
 -- Just "spaces.are.allowed@example.com"
 canonicalizeEmail :: ByteString -> Maybe ByteString
@@ -50,8 +52,10 @@
 --   an email address, use this.
 --
 -- Examples:
+--
 -- >>> validate "example@example.com"
 -- Right "example@example.com"
+--
 -- >>> validate "not.good"
 -- Left "at sign > @: not enough input"
 validate :: ByteString -> Either String EmailAddress