diff --git a/rust/Cargo.lock b/rust/Cargo.lock
index 91a7c6fe..e85ad24d 100644
--- a/rust/Cargo.lock
+++ b/rust/Cargo.lock
@@ -995,7 +995,7 @@ name = "nanoem-protobuf"
 version = "35.0.0"
 dependencies = [
  "bytes",
- "prost 0.11.9",
+ "prost",
  "prost-build",
 ]
 
@@ -1263,16 +1263,6 @@ dependencies = [
  "unicode-ident",
 ]
 
-[[package]]
-name = "prost"
-version = "0.11.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0b82eaa1d779e9a4bc1c3217db8ffbeabaae1dca241bf70183242128d48681cd"
-dependencies = [
- "bytes",
- "prost-derive 0.11.9",
-]
-
 [[package]]
 name = "prost"
 version = "0.12.0"
@@ -1280,7 +1270,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa8473a65b88506c106c28ae905ca4a2b83a2993640467a41bb3080627ddfd2c"
 dependencies = [
  "bytes",
- "prost-derive 0.12.0",
+ "prost-derive",
 ]
 
 [[package]]
@@ -1297,7 +1287,7 @@ dependencies = [
  "once_cell",
  "petgraph",
  "prettyplease",
- "prost 0.12.0",
+ "prost",
  "prost-types",
  "regex",
  "syn 2.0.31",
@@ -1305,19 +1295,6 @@ dependencies = [
  "which",
 ]
 
-[[package]]
-name = "prost-derive"
-version = "0.11.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5d2d8d10f3c6ded6da8b05b5fb3b8a5082514344d56c9f871412d29b4e075b4"
-dependencies = [
- "anyhow",
- "itertools",
- "proc-macro2",
- "quote",
- "syn 1.0.109",
-]
-
 [[package]]
 name = "prost-derive"
 version = "0.12.0"
@@ -1337,7 +1314,7 @@ version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cebe0a918c97f86c217b0f76fd754e966f8b9f41595095cf7d74cb4e59d730f6"
 dependencies = [
- "prost 0.12.0",
+ "prost",
 ]
 
 [[package]]
diff --git a/rust/protobuf/Cargo.toml b/rust/protobuf/Cargo.toml
index 12931a97..ecff18bf 100644
--- a/rust/protobuf/Cargo.toml
+++ b/rust/protobuf/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 
 [dependencies]
 bytes = "1"
-prost = "0.11"
+prost = "0.12"
 
 [build-dependencies]
 prost-build = "0.12"