diff --git a/Cargo.lock b/Cargo.lock
index 8a9fff9..cbd936a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,7 +39,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "libc"
-version = "0.2.28"
+version = "0.2.29"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -164,7 +164,7 @@ name = "rand"
 version = "0.3.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.2.28 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)",
  "magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -221,7 +221,7 @@ dependencies = [
 "checksum conv 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = "78ff10625fd0ac447827aa30ea8b861fead473bb60aeb73af6c1c58caf0d1299"
 "checksum csv 0.14.7 (registry+https://github.com/rust-lang/crates.io-index)" = "266c1815d7ca63a5bd86284043faf91e8c95e943e55ce05dc0ae08e952de18bc"
 "checksum custom_derive 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)" = "ef8ae57c4978a2acd8b869ce6b9ca1dfe817bff704c220209fdef2c0b75a01b9"
-"checksum libc 0.2.28 (registry+https://github.com/rust-lang/crates.io-index)" = "bb7b49972ee23d8aa1026c365a5b440ba08e35075f18c459980c7395c221ec48"
+"checksum libc 0.2.29 (registry+https://github.com/rust-lang/crates.io-index)" = "8a014d9226c2cc402676fbe9ea2e15dd5222cd1dd57f576b5b283178c944a264"
 "checksum magenta 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf0336886480e671965f794bc9b6fce88503563013d1bfb7a502c81fe3ac527"
 "checksum magenta-sys 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "40d014c7011ac470ae28e2f76a02bfea4a8480f73e701353b49ad7a8d75f4699"
 "checksum num 0.1.40 (registry+https://github.com/rust-lang/crates.io-index)" = "a311b77ebdc5dd4cf6449d81e4135d9f0e3b153839ac90e648a8ef538f923525"