diff --git a/extension/manifest.json b/extension/manifest.json
index 0de7787..a8f27c5 100644
--- a/extension/manifest.json
+++ b/extension/manifest.json
@@ -2,7 +2,7 @@
     "name": "Magento 2 DevTools",
     "version": "0.1",
     "description": "Helpful in-browser tooling for Magento 2",
-    "manifest_version": 2,
+    "manifest_version": 3,
     "permissions": ["activeTab"],
     "devtools_page": "devtools.html"
 }