diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6f5d81cf821..0aef2cd8b9e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -20,6 +20,8 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 <!-- next-header -->
 ## [Unreleased] - ReleaseDate
 
+## [4.3.21] - 2023-08-08
+
 ### Features
 
 - Expose `TryMapValueParser` so the type can be named
@@ -4393,7 +4395,8 @@ Minimum version of Rust is now v1.13.0 (Stable)
 * **arg**  allow lifetimes other than 'static in arguments ([9e8c1fb9](https://github.com/clap-rs/clap/commit/9e8c1fb9406f8448873ca58bab07fe905f1551e5))
 
 <!-- next-url -->
-[Unreleased]: https://github.com/clap-rs/clap/compare/v4.3.20...HEAD
+[Unreleased]: https://github.com/clap-rs/clap/compare/v4.3.21...HEAD
+[4.3.21]: https://github.com/clap-rs/clap/compare/v4.3.20...v4.3.21
 [4.3.20]: https://github.com/clap-rs/clap/compare/v4.3.19...v4.3.20
 [4.3.19]: https://github.com/clap-rs/clap/compare/v4.3.18...v4.3.19
 [4.3.18]: https://github.com/clap-rs/clap/compare/v4.3.17...v4.3.18
diff --git a/CITATION.cff b/CITATION.cff
index 805d606799c..d6d260eafee 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -4,7 +4,7 @@ message: Please cite this crate using these information.
 
 # Version information.
 date-released: 2023-08-08
-version: 4.3.20
+version: 4.3.21
 
 # Project information.
 abstract: A full featured, fast Command Line Argument Parser for Rust
diff --git a/Cargo.lock b/Cargo.lock
index f94bfa2bd26..e73a48cfc2b 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -481,9 +481,9 @@ dependencies = [
 
 [[package]]
 name = "clap"
-version = "4.3.20"
+version = "4.3.21"
 dependencies = [
- "clap_builder 4.3.20",
+ "clap_builder 4.3.21",
  "clap_derive",
  "humantime",
  "once_cell",
@@ -500,7 +500,7 @@ dependencies = [
 name = "clap_bench"
 version = "0.0.0"
 dependencies = [
- "clap 4.3.20",
+ "clap 4.3.21",
  "criterion",
  "lazy_static",
 ]
@@ -518,7 +518,7 @@ dependencies = [
 
 [[package]]
 name = "clap_builder"
-version = "4.3.20"
+version = "4.3.21"
 dependencies = [
  "anstream",
  "anstyle",
@@ -544,7 +544,7 @@ dependencies = [
 name = "clap_complete"
 version = "4.3.2"
 dependencies = [
- "clap 4.3.20",
+ "clap 4.3.21",
  "clap_lex 0.5.0",
  "completest",
  "is_executable",
@@ -559,7 +559,7 @@ dependencies = [
 name = "clap_complete_fig"
 version = "4.3.1"
 dependencies = [
- "clap 4.3.20",
+ "clap 4.3.21",
  "clap_complete",
  "snapbox",
 ]
@@ -568,7 +568,7 @@ dependencies = [
 name = "clap_complete_nushell"
 version = "4.3.2"
 dependencies = [
- "clap 4.3.20",
+ "clap 4.3.21",
  "clap_complete",
  "completest",
  "snapbox",
@@ -598,7 +598,7 @@ checksum = "2da6da31387c7e4ef160ffab6d5e7f00c42626fe39aea70a7b0f1773f7dd6c1b"
 name = "clap_mangen"
 version = "0.2.12"
 dependencies = [
- "clap 4.3.20",
+ "clap 4.3.21",
  "roff",
  "snapbox",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index cf7ef6f4eb8..f05a4a25d51 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -27,7 +27,7 @@ include = [
 
 [package]
 name = "clap"
-version = "4.3.20"
+version = "4.3.21"
 description = "A simple to use, efficient, and full-featured Command Line Argument Parser"
 repository = "https://github.com/clap-rs/clap"
 categories = ["command-line-interface"]
@@ -101,7 +101,7 @@ unstable-styles = ["clap_builder/unstable-styles"]
 bench = false
 
 [dependencies]
-clap_builder = { path = "./clap_builder", version = "=4.3.20", default-features = false }
+clap_builder = { path = "./clap_builder", version = "=4.3.21", default-features = false }
 clap_derive = { path = "./clap_derive", version = "=4.3.12", optional = true }
 once_cell = { version = "1.12.0", optional = true }
 
diff --git a/clap_builder/Cargo.toml b/clap_builder/Cargo.toml
index 83fdaf3ef1c..64b53a484fd 100644
--- a/clap_builder/Cargo.toml
+++ b/clap_builder/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "clap_builder"
-version = "4.3.20"
+version = "4.3.21"
 description = "A simple to use, efficient, and full-featured Command Line Argument Parser"
 repository = "https://github.com/clap-rs/clap"
 categories = ["command-line-interface"]