diff --git a/proto-build/Cargo.toml b/proto-build/Cargo.toml
index 4b88b6c..be57563 100644
--- a/proto-build/Cargo.toml
+++ b/proto-build/Cargo.toml
@@ -10,6 +10,6 @@ publish = false
 prost = "0.11"
 prost-build = "0.11"
 tonic = "0.8"
-tonic-build = "0.8"
+tonic-build = "0.9"
 regex = "1"
 walkdir = "2.3"