diff --git a/Cargo.toml b/Cargo.toml
index ef0778a527b..eea1f42a243 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ crates-io = { path = "crates/crates-io", version = "0.29" }
 crossbeam-utils = "0.6"
 crypto-hash = "0.3.1"
 curl = { version = "0.4.23", features = ["http2"] }
-curl-sys = "0.4.21"
+curl-sys = "0.4.22"
 env_logger = "0.7.0"
 pretty_env_logger = { version = "0.3", optional = true }
 failure = "0.1.5"