diff --git a/hoauth2.cabal b/hoauth2.cabal
--- a/hoauth2.cabal
+++ b/hoauth2.cabal
@@ -1,6 +1,6 @@
 Name:                hoauth2
 -- http://wiki.haskell.org/Package_versioning_policy
-Version:             1.4.0
+Version:             1.5.0
 
 Synopsis:            Haskell OAuth2 authentication client
 
@@ -31,7 +31,7 @@
 Category:            Network
 Build-type:          Simple
 stability:           Beta
-tested-with:         GHC <= 7.10.2
+tested-with:         GHC <= 8.0.2
 
 Extra-source-files: README.md
                     example/Keys.hs.sample
@@ -65,7 +65,7 @@
                  text                 >= 0.11  && < 1.3,
                  bytestring           >= 0.9   && < 0.11,
                  http-conduit         >= 2.1   && < 2.3,
-                 http-types           >= 0.9   && < 0.10,
+                 http-types           >= 0.9   && < 0.11,
                  aeson                >= 0.11  && < 1.3,
                  unordered-containers >= 0.2.5,
                  uri-bytestring       >= 0.2.3.1 && < 0.4,
@@ -89,7 +89,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,
@@ -114,7 +114,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,
@@ -139,7 +139,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,
@@ -163,7 +163,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,
@@ -187,7 +187,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,
@@ -215,7 +215,7 @@
                        bytestring        >= 0.9    && < 0.11,
                        uri-bytestring    >= 0.2.3.1 && < 0.4,
                        http-conduit      >= 2.1    && < 2.3,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        wai               >= 3.2    && < 3.3,
                        warp              >= 3.2    && < 3.3,
                        containers        >= 0.4    && < 0.6,
@@ -239,7 +239,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,
@@ -263,7 +263,7 @@
   hs-source-dirs:      example
   default-language:    Haskell2010
   build-depends:       base              >= 4.5    && < 5,
-                       http-types        >= 0.9    && < 0.10,
+                       http-types        >= 0.9    && < 0.11,
                        http-conduit      >= 2.1    && < 2.3,
                        text              >= 0.11   && < 1.3,
                        bytestring        >= 0.9    && < 0.11,