diff --git a/Cargo.toml b/Cargo.toml
index 337e403..f712fbc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ readme        = "README.md"
 keywords = [ "crypto", "cryptography", "allocator" ]
 
 [dependencies]
-libc          = '0'
+libc          = '0.2'
 libsodium-sys = { version = '0.2', optional = true }
 
 [target.'cfg(target_family = "unix")'.build-dependencies]