diff --git a/packages/core/event-handler.js b/packages/core/event-handler.js
index 439915e..8f8371e 100644
--- a/packages/core/event-handler.js
+++ b/packages/core/event-handler.js
@@ -142,7 +142,7 @@ async function buildRegistry(usedCustomElements, type, storage) {
         !isBaseClassImported &&
         content.toString().includes("extends WebComponent")
       ) {
-        const baseClassImport = `import { WebComponent } from "https://unpkg.com/web-component-base@1.12.4/WebComponent.js";`;
+        const baseClassImport = `import { WebComponent } from "https://unpkg.com/web-component-base@1.12.12/WebComponent.min.js";`;
         registryScript += baseClassImport;
         isBaseClassImported = true;
       }