diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7bf1026c..abf94ca3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,10 @@
 # Mindee PHP API Library Changelog
 
+## v2.2.1 - 2025-11-17
+### Fixes
+* :wrench: normalize comparator names for confidence scores
+
+
 ## v2.2.0 - 2025-11-14
 ### Changes
 * :sparkles: add support for RAG metadata
diff --git a/src/Parsing/V2/ErrorResponse.php b/src/Parsing/V2/ErrorResponse.php
index 7190621e..c6dc83f1 100644
--- a/src/Parsing/V2/ErrorResponse.php
+++ b/src/Parsing/V2/ErrorResponse.php
@@ -25,7 +25,6 @@ class ErrorResponse
     public ?string $title;
     /**
      * @var string|null A machine-readable code specific to the occurrence of the problem.
-     * Note: PHP's `RuntimeException` class uses `$code` for the error code.
      */
     public ?string $code;
     /**
diff --git a/src/version.php b/src/version.php
index d39545f9..079c95b4 100644
--- a/src/version.php
+++ b/src/version.php
@@ -2,4 +2,4 @@
 
 namespace Mindee;
 
-const VERSION = '2.2.0';
+const VERSION = '2.2.1';