diff --git a/gen/rust/Cargo.toml b/gen/rust/Cargo.toml
index 56cc506..ac5ba13 100644
--- a/gen/rust/Cargo.toml
+++ b/gen/rust/Cargo.toml
@@ -4,7 +4,7 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
-prost = "0.14"
+prost = "0.13"
 
 [dev-dependencies]
 bytes = "1.3"