diff --git a/.cargo_vcs_info.json b/.cargo_vcs_info.json
index 0be67b3..fd60efa 100644
--- a/.cargo_vcs_info.json
+++ b/.cargo_vcs_info.json
@@ -1,5 +1,5 @@
 {
   "git": {
-    "sha1": "3eabf141db9d0d69961ba8a1eaf2907c7aeb8ff9"
+    "sha1": "0d3e6a3e72f0276f7c09ca119873f3ba7404a459"
   }
 }
diff --git a/Android.bp b/Android.bp
index e180529..b72b70e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -57,4 +57,4 @@
 }
 
 // dependent_library ["feature_list"]
-//   protobuf-2.22.1
+//   protobuf-2.23.0
diff --git a/Cargo.lock b/Cargo.lock
index 8d6fde0..df48d45 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,13 +4,13 @@
 
 [[package]]
 name = "protobuf"
-version = "2.22.1"
+version = "2.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1b7f4a129bb3754c25a4e04032a90173c68f85168f77118ac4cb4936e7f06f92"
+checksum = "45604fc7a88158e7d514d8e22e14ac746081e7a70d7690074dd0029ee37458d6"
 
 [[package]]
 name = "protobuf-codegen"
-version = "2.22.1"
+version = "2.23.0"
 dependencies = [
  "protobuf",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index b594d67..d8aa116 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@
 
 [package]
 name = "protobuf-codegen"
-version = "2.22.1"
+version = "2.23.0"
 authors = ["Stepan Koltsov <stepan.koltsov@gmail.com>"]
 description = "Code generator for rust-protobuf.\n\nIncludes a library and `protoc-gen-rust` binary.\n\nSee `protoc-rust` and `protobuf-codegen-pure` crates.\n"
 homepage = "https://github.com/stepancheg/rust-protobuf/"
@@ -34,4 +34,4 @@
 path = "src/bin/protobuf-bin-gen-rust-do-not-use.rs"
 test = false
 [dependencies.protobuf]
-version = "=2.22.1"
+version = "=2.23.0"
diff --git a/Cargo.toml.orig b/Cargo.toml.orig
index 07931fd..9341bf6 100644
--- a/Cargo.toml.orig
+++ b/Cargo.toml.orig
@@ -1,6 +1,6 @@
 [package]
 name = "protobuf-codegen"
-version = "2.22.1"
+version = "2.23.0"
 authors = ["Stepan Koltsov <stepan.koltsov@gmail.com>"]
 license = "MIT"
 homepage = "https://github.com/stepancheg/rust-protobuf/"
@@ -17,7 +17,7 @@
 bench = false
 
 [dependencies]
-protobuf = { path = "../protobuf", version = "=2.22.1" }
+protobuf = { path = "../protobuf", version = "=2.23.0" }
 
 [[bin]]
 
diff --git a/METADATA b/METADATA
index e905992..b7b1d94 100644
--- a/METADATA
+++ b/METADATA
@@ -7,13 +7,13 @@
   }
   url {
     type: ARCHIVE
-    value: "https://static.crates.io/crates/protobuf-codegen/protobuf-codegen-2.22.1.crate"
+    value: "https://static.crates.io/crates/protobuf-codegen/protobuf-codegen-2.23.0.crate"
   }
-  version: "2.22.1"
+  version: "2.23.0"
   license_type: NOTICE
   last_upgrade_date {
     year: 2021
-    month: 4
-    day: 1
+    month: 5
+    day: 19
   }
 }
diff --git a/src/lib.rs b/src/lib.rs
index 3458957..7473103 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -192,7 +192,7 @@
     {
         let mut w = CodeWriter::new(&mut v);
 
-        w.write_generated_by("rust-protobuf", "2.22.1");
+        w.write_generated_by("rust-protobuf", "2.23.0");
         w.write_line(&format!("//! Generated file from `{}`", file.get_name()));
         if customize.inside_protobuf != Some(true) {
             w.write_line("");
diff --git a/src/protobuf_name.rs b/src/protobuf_name.rs
index 03163e3..c40a69c 100644
--- a/src/protobuf_name.rs
+++ b/src/protobuf_name.rs
@@ -245,8 +245,8 @@
 
     /// From string.
     pub fn new(path: String) -> ProtobufAbsolutePath {
-        assert!(path.is_empty() || path.starts_with("."), path);
-        assert!(!path.ends_with("."), path);
+        assert!(path.is_empty() || path.starts_with("."), "{}", path);
+        assert!(!path.ends_with("."), "{}", path);
         ProtobufAbsolutePath { path }
     }