diff --git a/components/servo/Cargo.lock b/components/servo/Cargo.lock
index 6f0c60c77ff..952350c6971 100644
--- a/components/servo/Cargo.lock
+++ b/components/servo/Cargo.lock
@@ -1064,7 +1064,7 @@ name = "malloc_buf"
 version = "0.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "libc 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)",
+ "libc 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]