diff --git a/Cargo.toml b/Cargo.toml
index ac5b996..b1ad5aa 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,9 +11,9 @@ keywords = ["audio", "sound"]
 
 [dependencies]
 libc = "0.2"
-lazy_static = "0.1"
-winapi = "0.2.5"
-ole32-sys = "0.1"
+lazy_static = "0.2"
+winapi = "0.2.8"
+ole32-sys = "0.2"
 
 [target.arm-unknown-linux-gnueabihf.dependencies.alsa-sys]
 version = "0"