diff --git a/package-lock.json b/package-lock.json
index af60e01..ec31003 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "core-js": "^3.8.3",
         "highlight.js": "^10.7.3",
         "jszip": "^3.10.1",
-        "lib-iitc-manager": "^1.9.0",
+        "lib-iitc-manager": "^1.9.1",
         "scored-fuzzysearch": "^1.0.5",
         "vue": "^2.6.14"
       },
@@ -10233,9 +10233,10 @@
       }
     },
     "node_modules/lib-iitc-manager": {
-      "version": "1.9.0",
-      "resolved": "https://registry.npmjs.org/lib-iitc-manager/-/lib-iitc-manager-1.9.0.tgz",
-      "integrity": "sha512-8baF0kySzDQIqNv8+eSLNhjHN+jQIG8TLKvENDNVSaE4dWmdyF0IjWaYqxxE06+uwQktQG3XeY49QLYelmBscw==",
+      "version": "1.9.1",
+      "resolved": "https://registry.npmjs.org/lib-iitc-manager/-/lib-iitc-manager-1.9.1.tgz",
+      "integrity": "sha512-2TWXmkajWemAPhVv37aej1P6zixxkoNRsXqj0F+xphZ7RaIDVnMWvf/02go8Diy9Ej05yoWRnj7e3KRlWDkZIA==",
+      "license": "GPL-3.0-or-later",
       "dependencies": {
         "@bundled-es-modules/deepmerge": "^4.3.1",
         "xhr2": "^0.2.1"
diff --git a/package.json b/package.json
index 8da204a..59ca855 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,7 @@
     "core-js": "^3.8.3",
     "highlight.js": "^10.7.3",
     "jszip": "^3.10.1",
-    "lib-iitc-manager": "^1.9.0",
+    "lib-iitc-manager": "^1.9.1",
     "scored-fuzzysearch": "^1.0.5",
     "vue": "^2.6.14"
   },
diff --git a/src/background/injector.js b/src/background/injector.js
index d4e9afc..660832b 100644
--- a/src/background/injector.js
+++ b/src/background/injector.js
@@ -58,6 +58,7 @@ export async function manage_userscripts_api(plugins_event) {
     const remove_ids = Object.keys(plugins);
     try {
       await browser.userScripts.unregister({ ids: remove_ids });
+      return;
     } catch (e) {
       console.log("an error occurred while unregistering the plugin", e);
     }