Upgrade to winapi 0.3
diff --git a/Cargo.toml b/Cargo.toml
index 52131f2..84d14cb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@
 nix = "0.9"
 
 [target.'cfg(windows)'.dependencies]
-winapi = "0.2"
+winapi = "0.3"
 kernel32-sys = "0.2"
 
 [dev-dependencies]