diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index dd3e332b5..9b4dd6e34 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -172,8 +172,8 @@
     "description":"English: new version available"
   },
   "3pExternalListObsolete":{
-    "message":"may be obsolete",
-    "description":"English: may be obsolete"
+    "message":"outdated",
+    "description":"English: outdated"
   },
   "1pFormatHint":{
     "message":"One filter per line. A filter can be a plain hostname, or an Adblock Plus-compatible filter. Lines prefixed with ‘!’ will be ignored.",