diff --git a/releases/ubuntu.json b/releases/ubuntu.json
index 06428b2e..698d7bd6 100644
--- a/releases/ubuntu.json
+++ b/releases/ubuntu.json
@@ -348,18 +348,6 @@
     "6.06.1": {
       "name": "6.06.1",
       "date": "2006-08-10"
-    },
-    "5.10": {
-      "name": "5.10",
-      "date": "2005-10-13"
-    },
-    "5.04": {
-      "name": "5.04",
-      "date": "2005-04-08"
-    },
-    "4.10": {
-      "name": "4.10",
-      "date": "2004-10-20"
     }
   }
 }
\ No newline at end of file