diff --git a/Cargo.lock b/Cargo.lock
index 50cc726300afcaffcc9c32a5127bba5bdd5b2a76..5a22f4baab9b26e0b3fd818456a6d61ca10f87d9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -115,7 +115,7 @@ dependencies = [
  "libgit2-sys 0.6.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-probe 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "openssl-sys 0.9.50 (registry+https://github.com/rust-lang/crates.io-index)",
- "url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -253,6 +253,11 @@ dependencies = [
  "vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "percent-encoding"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "pkg-config"
 version = "0.3.16"
@@ -329,11 +334,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "url"
-version = "1.2.3"
+version = "1.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "idna 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "matches 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)",
+ "percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -404,6 +410,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum num-traits 0.1.36 (registry+https://github.com/rust-lang/crates.io-index)" = "a16a42856a256b39c6d3484f097f6713e14feacd9bfb02290917904fae46c81c"
 "checksum openssl-probe 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "756d49c8424483a3df3b5d735112b4da22109ced9a8294f1f5cdf80fb3810919"
 "checksum openssl-sys 0.9.50 (registry+https://github.com/rust-lang/crates.io-index)" = "2c42dcccb832556b5926bc9ae61e8775f2a61e725ab07ab3d1e7fcf8ae62c3b6"
+"checksum percent-encoding 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = "31010dd2e1ac33d5b46a5b413495239882813e0369f8ed8a5e266f173602f831"
 "checksum pkg-config 0.3.16 (registry+https://github.com/rust-lang/crates.io-index)" = "72d5370d90f49f70bd033c3d75e87fc529fbfff9d6f7cccef07d6170079d91ea"
 "checksum quick-error 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "0aad603e8d7fb67da22dbdf1f4b826ce8829e406124109e73cf1b2454b93a71c"
 "checksum rand 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "2791d88c6defac799c3f20d74f094ca33b9332612d9aef9078519c82e4fe04a5"
@@ -415,7 +422,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum unicode-normalization 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "26643a2f83bac55f1976fb716c10234485f9202dcd65cfbdf9da49867b271172"
 "checksum unicode-segmentation 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)" = "b905d0fc2a1f0befd86b0e72e31d1787944efef9d38b9358a9e92a69757f7e3b"
 "checksum unicode-width 0.1.3 (registry+https://github.com/rust-lang/crates.io-index)" = "2d6722facc10989f63ee0e20a83cd4e1714a9ae11529403ac7e0afd069abc39e"
-"checksum url 1.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "48ccf7bd87a81b769cf84ad556e034541fb90e1cd6d4bc375c822ed9500cd9d7"
+"checksum url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)" = "dd4e7c0d531266369519a4aa4f399d748bd37043b00bde1e4ff1f60a120b355a"
 "checksum vcpkg 0.2.7 (registry+https://github.com/rust-lang/crates.io-index)" = "33dd455d0f96e90a75803cfeb7f948768c08d70a6de9a8d2362461935698bf95"
 "checksum vec_map 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cac5efe5cb0fa14ec2f84f83c701c562ee63f6dcc680861b21d65c682adfb05f"
 "checksum winapi 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"