diff --git a/CHANGELOG.md b/CHANGELOG.md
index f6ef8468..80c694ce 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 # Changelog
 
+# 3.2.1
+- Fix for #107: Z80CPU Error: TypeError: Cannot read properties of undefined (reading 'start')
+
 # 3.2.0
 - Changed to esbuild. Package size decreased.
 - zsim: Audio fixed for chrome behavior. Note: audio is not started until the user has interacted with the simulator webview.
diff --git a/package-lock.json b/package-lock.json
index 3ea6d4e7..5784157c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
 	"name": "dezog",
-	"version": "3.2.0",
+	"version": "3.2.1-rc1",
 	"lockfileVersion": 2,
 	"requires": true,
 	"packages": {
 		"": {
 			"name": "dezog",
-			"version": "3.2.0",
+			"version": "3.2.1-rc1",
 			"license": "MIT",
 			"dependencies": {
 				"@aduh95/viz.js": "^3.7.0",
@@ -39,8 +39,8 @@
 				"typescript": "^4.8.4"
 			},
 			"engines": {
-				"node": "^16.14.0",
-				"vscode": "^1.71.0"
+				"node": ">=16.14.0",
+				"vscode": ">=1.71.0"
 			}
 		},
 		"node_modules/@aduh95/viz.js": {
diff --git a/package.json b/package.json
index 20ce0510..1c12130c 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "dezog",
 	"displayName": "DeZog",
-	"version": "3.2.0",
+	"version": "3.2.1-rc1",
 	"publisher": "maziac",
 	"description": "Visual Studio Code Debugger for the Z80 and ZX Spectrum.",
 	"author": {
@@ -16,8 +16,8 @@
 		"assembler"
 	],
 	"engines": {
-		"vscode": "^1.71.0",
-		"node": "^16.14.0"
+		"vscode": ">=1.71.0",
+		"node": ">=16.14.0"
 	},
 	"icon": "assets/icon.png",
 	"categories": [