diff --git a/src/ghes-releases/lib/enterprise-dates.json b/src/ghes-releases/lib/enterprise-dates.json
index 6c8d7fe5c2c0..3e306f174293 100644
--- a/src/ghes-releases/lib/enterprise-dates.json
+++ b/src/ghes-releases/lib/enterprise-dates.json
@@ -117,7 +117,7 @@
   },
   "3.5": {
     "releaseDate": "2022-05-10",
-    "deprecationDate": "2023-05-31"
+    "deprecationDate": "2023-06-20"
   },
   "3.6": {
     "releaseDate": "2022-07-26",