diff --git a/Cargo.lock b/Cargo.lock
index 3fda465..84913f0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -71,7 +71,7 @@ dependencies = [
 [[package]]
 name = "git2"
 version = "0.2.12"
-source = "git+https://github.com/alexcrichton/git2-rs.git#e5a439b13f45ca6b95fbf5f47ccf4b030d37ed1c"
+source = "git+https://github.com/alexcrichton/git2-rs.git#3a7a990607a766fa65a40b920d70c8289691d2f8"
 dependencies = [
  "bitflags 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -87,12 +87,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 [[package]]
 name = "libgit2-sys"
 version = "0.2.17"
-source = "git+https://github.com/alexcrichton/git2-rs.git#e5a439b13f45ca6b95fbf5f47ccf4b030d37ed1c"
+source = "git+https://github.com/alexcrichton/git2-rs.git#3a7a990607a766fa65a40b920d70c8289691d2f8"
 dependencies = [
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libssh2-sys 0.1.25 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -111,7 +111,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "libz-sys 0.1.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "openssl-sys 0.6.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "openssl-sys 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "pkg-config 0.3.5 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -186,7 +186,7 @@ dependencies = [
 
 [[package]]
 name = "openssl-sys"
-version = "0.6.2"
+version = "0.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "gcc 0.3.8 (registry+https://github.com/rust-lang/crates.io-index)",