diff --git a/Cargo.toml b/Cargo.toml
index 9b0ad08..452990d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -38,7 +38,7 @@ prost = ["prost-types"]
 
 [dependencies]
 once_cell = "1.4"
-prost-types = { version = "0.11", default-features = false, optional = true }
+prost-types = { version = "0.12", default-features = false, optional = true }
 crossbeam-utils = "0.8.5"
 
 [target.'cfg(target_arch = "x86")'.dependencies]