diff --git a/Cargo.lock b/Cargo.lock
index 68b39ee..1648a95 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,28 +1,28 @@
 [root]
 name = "yup-oauth2"
-version = "0.6.2"
+version = "0.6.3"
 dependencies = [
- "chrono 0.2.22 (registry+https://github.com/rust-lang/crates.io-index)",
+ "chrono 0.2.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "getopts 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "hyper 0.9.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "itertools 0.4.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "itertools 0.4.18 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "open 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_codegen 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_json 0.7.4 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_macros 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_codegen 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_json 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_macros 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 0.5.10 (registry+https://github.com/rust-lang/crates.io-index)",
  "yup-hyper-mock 1.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "aster"
-version = "0.21.1"
+version = "0.26.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_syntax 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -37,10 +37,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "chrono"
-version = "0.2.22"
+version = "0.2.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num 0.1.34 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -52,12 +52,17 @@ dependencies = [
  "openssl 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "time 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "dtoa"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "gcc"
-version = "0.3.31"
+version = "0.3.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -96,7 +101,7 @@ dependencies = [
  "httparse 1.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "language-tags 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "mime 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "mime 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "num_cpus 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-verify 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -106,7 +111,7 @@ dependencies = [
  "traitobject 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "typeable 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -121,7 +126,7 @@ dependencies = [
 
 [[package]]
 name = "itertools"
-version = "0.4.16"
+version = "0.4.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -150,7 +155,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.14"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -173,7 +178,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "mime"
-version = "0.2.1"
+version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -181,12 +186,12 @@ dependencies = [
 
 [[package]]
 name = "num"
-version = "0.1.34"
+version = "0.1.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
  "num-iter 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -194,7 +199,7 @@ name = "num-integer"
 version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "num-traits 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -203,12 +208,12 @@ version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "num-integer 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "num-traits"
-version = "0.1.33"
+version = "0.1.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -216,7 +221,7 @@ name = "num_cpus"
 version = "0.2.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -230,20 +235,20 @@ version = "0.7.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "gcc 0.3.31 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.35 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.7.17 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys-extras 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "openssl-sys"
-version = "0.7.14"
+version = "0.7.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gdi32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "libressl-pnacl-sys 2.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "user32-sys 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -254,9 +259,9 @@ name = "openssl-sys-extras"
 version = "0.7.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "gcc 0.3.31 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "gcc 0.3.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.7.17 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -277,35 +282,35 @@ name = "pnacl-build-helper"
 version = "1.4.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "tempdir 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tempdir 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "quasi"
-version = "0.15.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_errors 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "quasi_codegen"
-version = "0.15.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aster 0.21.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_errors 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aster 0.26.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "quasi_macros"
-version = "0.15.0"
+version = "0.19.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "quasi_codegen 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quasi_codegen 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -313,7 +318,7 @@ name = "rand"
 version = "0.3.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -336,48 +341,49 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde"
-version = "0.7.14"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "serde_codegen"
-version = "0.7.14"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "aster 0.21.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi_codegen 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "quasi_macros 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde_codegen_internals 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "aster 0.26.1 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quasi 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quasi_codegen 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quasi_macros 0.19.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_codegen_internals 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_codegen_internals"
-version = "0.3.0"
+version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_errors 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_json"
-version = "0.7.4"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
+ "dtoa 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "itoa 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "num-traits 0.1.33 (registry+https://github.com/rust-lang/crates.io-index)",
- "serde 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num-traits 0.1.35 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "serde_macros"
-version = "0.7.14"
+version = "0.8.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "serde_codegen 0.7.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "serde_codegen 0.8.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -391,29 +397,29 @@ dependencies = [
 
 [[package]]
 name = "syntex"
-version = "0.38.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "syntex_errors 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_syntax 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_syntax 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "syntex_errors"
-version = "0.38.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_pos 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_pos 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "syntex_pos"
-version = "0.38.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -421,22 +427,22 @@ dependencies = [
 
 [[package]]
 name = "syntex_syntax"
-version = "0.38.0"
+version = "0.43.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "bitflags 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_errors 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "syntex_pos 0.38.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_errors 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syntex_pos 0.43.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "term 0.4.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "tempdir"
-version = "0.3.4"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -457,7 +463,7 @@ version = "0.1.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "libc 0.2.14 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.16 (registry+https://github.com/rust-lang/crates.io-index)",
  "winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -499,19 +505,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "url"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "matches 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "rustc-serialize 0.3.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-bidi 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-normalization 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
- "uuid 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "uuid 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "url"
-version = "1.1.1"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -529,7 +535,7 @@ dependencies = [
 
 [[package]]
 name = "uuid"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -554,3 +560,72 @@ dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[metadata]
+"checksum aster 0.26.1 (registry+https://github.com/rust-lang/crates.io-index)" = "baa18cafee9499ac766e76117577b84efa98f43b81964cf167cd800b29176db3"
+"checksum bitflags 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4f67931368edf3a9a51d29886d245f1c3db2f1ef0dcc9e35ff70341b78c10d23"
+"checksum bitflags 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "aad18937a628ec6abcd26d1489012cc0e18c21798210f491af69ded9b881106d"
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diff --git a/Cargo.toml b/Cargo.toml
index ff58b3d..4147053 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,10 +1,10 @@
 [package]
 
 name = "yup-oauth2"
-version = "0.6.2"
+version = "0.6.3"
 authors = ["Sebastian Thiel <byronimo@gmail.com>", "Lewin Bormann <lbo@spheniscida.de>"]
 repository = "https://github.com/Byron/yup-oauth2"
-description = "A partial oauth2 implementation, providing the 'device' authorization flow"
+description = "An oauth2 implementation, providing the 'device' and 'installed' authorization flow"
 documentation = "http://byron.github.io/yup-oauth2"
 keywords = ["google", "oauth", "v2"]
 license = "MIT OR Apache-2.0"