diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07b5f96..7845d98 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,11 @@ All notable changes to this package will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [0.6.1] - 2024-11-01
+
+**Fix**:
+- Fixed an issue that would crash the execution when calling *Remove()* & *RemoveOrigin* from *ObservableResolverDictionary*
+
 ## [0.6.0] - 2023-08-05
 
 - Improved the *ObservableResolverList* and *ObservableResolverDictionary* data types to properly resolve lists and dictionaries with different data types from the original collection.
diff --git a/Runtime/ObservableDictionary.cs b/Runtime/ObservableDictionary.cs
index 94ce25b..9168028 100644
--- a/Runtime/ObservableDictionary.cs
+++ b/Runtime/ObservableDictionary.cs
@@ -453,7 +453,9 @@ public override void Add(TKey key, TValue value)
 		/// <inheritdoc />
 		public override bool Remove(TKey key)
 		{
-			var pair = _toOrignResolver(key, Dictionary[key]);
+			if(!Dictionary.TryGetValue(key, out var value)) return false;
+
+			var pair = _toOrignResolver(key, value);
 
 			_dictionary.Remove(pair.Key);
 
@@ -479,7 +481,9 @@ public void AddOrigin(TKeyOrigin key, TValueOrigin value)
 		/// <inheritdoc />
 		public bool RemoveOrigin(TKeyOrigin key)
 		{
-			var convertPair = _fromOrignResolver(new KeyValuePair<TKeyOrigin, TValueOrigin>(key, OriginDictionary[key]));
+			if (!_dictionary.TryGetValue(key, out var value)) return false;
+
+			var convertPair = _fromOrignResolver(new KeyValuePair<TKeyOrigin, TValueOrigin>(key, value));
 
 			_dictionary.Remove(key);
 			return base.Remove(convertPair.Key);
diff --git a/package.json b/package.json
index af7dfed..a5dae5c 100644
--- a/package.json
+++ b/package.json
@@ -2,8 +2,8 @@
   "name": "com.gamelovers.dataextensions",
   "displayName": "Unity Data Type Extensions",
   "author": "Miguel Tomas",
-  "version": "0.6.0",
-  "unity": "2022.4",
+  "version": "0.6.1",
+  "unity": "2022.3",
   "license": "MIT",
   "description": "This package extends various sets of data types to be used in any type of data containers or persistent serializable data",
   "type": "library",