diff --git a/calendar-service/Cargo.toml b/calendar-service/Cargo.toml
index a9036da..473ac0e 100644
--- a/calendar-service/Cargo.toml
+++ b/calendar-service/Cargo.toml
@@ -17,7 +17,7 @@ aes-gcm = "0.10.1"
 generic-array = "0.14.7"
 
 [build-dependencies]
-tonic-build = "0.9.2"
+tonic-build = "0.11.0"
 
 [dev-dependencies]
 serial_test = "2.0.0"