diff --git a/assets/advanced-installer-project/Glucose Ticker.aip b/assets/advanced-installer-project/Glucose Ticker.aip
index d1ce5f2..f52e6a1 100644
--- a/assets/advanced-installer-project/Glucose Ticker.aip	
+++ b/assets/advanced-installer-project/Glucose Ticker.aip	
@@ -13,10 +13,10 @@
     <ROW Property="ARPURLUPDATEINFO" Value="https://github.com/nielsmaerten/glucose-ticker/releases"/>
     <ROW Property="LIMITUI" MultiBuildValue="DefaultBuild:1"/>
     <ROW Property="Manufacturer" Value="Diabase.app"/>
-    <ROW Property="ProductCode" Value="1033:{0BCB1E54-FF2A-4D96-AB02-1BD510E936B6} " Type="16"/>
+    <ROW Property="ProductCode" Value="1033:{695DED02-44F4-4B3C-8B7C-5B42716ADC19} " Type="16"/>
     <ROW Property="ProductLanguage" Value="1033"/>
     <ROW Property="ProductName" Value="Glucose Ticker"/>
-    <ROW Property="ProductVersion" Value="0.4.1.0" Type="32" TargetFile="GlucoseTicker.exe"/>
+    <ROW Property="ProductVersion" Value="0.4.2.0" Type="32" TargetFile="GlucoseTicker.exe"/>
     <ROW Property="SecureCustomProperties" Value="OLDPRODUCTS;AI_NEWERPRODUCTFOUND"/>
     <ROW Property="UpgradeCode" Value="{B3CA8132-2343-49AE-89AF-440536B1E8DA}"/>
     <ROW Property="WindowsType9X" MultiBuildValue="DefaultBuild:Windows 9x/ME" ValueLocId="-"/>
diff --git a/package.json b/package.json
index ccc74a0..62783fa 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,8 @@
   "scripts": {
     "format": "prettier --write src/**/*",
     "start": "yarn run build:ts && electron .",
-    "build:app": "yarn run build:ts && electron-builder --dir",
+    "build:app:unpacked": "yarn run build:ts && electron-builder --dir",
+    "build:app:portable": "yarn run build:ts && electron-builder",
     "build:ts": "yarn run clean && tsc --project tsconfig.json && rollup --config && rimraf tmp/tsc/package.json",
     "clean": "rimraf out && rimraf tmp && rimraf dist"
   },
diff --git a/src/electron-app/components/glucose-watcher.ts b/src/electron-app/components/glucose-watcher.ts
index 7a08721..439eb16 100644
--- a/src/electron-app/components/glucose-watcher.ts
+++ b/src/electron-app/components/glucose-watcher.ts
@@ -12,7 +12,6 @@ export default class GlucoseWatcher {
     return this._instance;
   }
 
-  private lock: boolean = false;
   private nightscoutAPI!: NightscoutAPI;
   private currentGlucose!: GlucoseStatus;
   private settings!: AppSettings;
@@ -60,17 +59,12 @@ export default class GlucoseWatcher {
     // Bail if: API not initialized
     if (!this.nightscoutAPI) return;
 
-    // Bail if: other cron job is currently running
-    if (this.lock) return;
-    else this.lock = true;
-
     console.log("Fetching new glucose value");
     this.currentGlucose = await this.nightscoutAPI.getCurrentStatus();
 
     // Refresh the app's icon
     const icon = new AppIcon(this.settings, this.currentGlucose);
     AppState.mainWindow.setIcon(await icon.toNativeImage());
-    this.lock = false;
   };
 }