diff --git a/Cargo.lock b/Cargo.lock
index 3ea9855..531d44e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -18,17 +18,17 @@ name = "getopts"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "log 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "libc"
-version = "0.1.1"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "log"
-version = "0.2.2"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -36,8 +36,8 @@ name = "rand"
 version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "log 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "log 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]