diff --git a/languages/rust/Cargo.toml b/languages/rust/Cargo.toml
index ce5060f..893dc71 100644
--- a/languages/rust/Cargo.toml
+++ b/languages/rust/Cargo.toml
@@ -30,7 +30,7 @@ server = []
 
 [dependencies]
 prost = "0.6.1"
-tonic = "0.3.1"
+tonic = "0.4.1"
 
 [dev-dependencies]
 tokio = { version = "0.3.0", features = ["full"] }