diff --git a/calendar-service/Cargo.toml b/calendar-service/Cargo.toml
index a9036da..40d1540 100644
--- a/calendar-service/Cargo.toml
+++ b/calendar-service/Cargo.toml
@@ -6,7 +6,7 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-tonic = "0.9.1"
+tonic = "0.11.0"
 prost = "0.11.9"
 prost-types = "0.11.9"
 tokio = { version = "1.27.0", features = ["macros", "rt-multi-thread"] }