diff --git a/CHANGELOG.md b/CHANGELOG.md
index e1f5b2e..6ebc828 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,10 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [2.1.1] 2020-11-16
 ### Changed
 - Session key decryption now considers multiple key packets 
-
+### Fixed
+- Improved key parsing error handling
 
 ## [2.1.0] 2020-11-04
 ### Security
diff --git a/constants/armor.go b/constants/armor.go
index 0cfe0d4..484c86f 100644
--- a/constants/armor.go
+++ b/constants/armor.go
@@ -3,7 +3,7 @@ package constants
 
 // Constants for armored data.
 const (
-	ArmorHeaderVersion = "GopenPGP 2.1.0"
+	ArmorHeaderVersion = "GopenPGP 2.1.1"
 	ArmorHeaderComment = "https://gopenpgp.org"
 	PGPMessageHeader   = "PGP MESSAGE"
 	PGPSignatureHeader = "PGP SIGNATURE"