diff --git a/.doctrine-project.json b/.doctrine-project.json
index 19205c35..4c7d9c85 100644
--- a/.doctrine-project.json
+++ b/.doctrine-project.json
@@ -4,10 +4,16 @@
     "slug": "persistence",
     "docsSlug": "doctrine-persistence",
     "versions": [
+        {
+            "name": "4.0",
+            "branchName": "4.0.x",
+            "slug": "latest",
+            "upcoming": true
+        },
         {
             "name": "3.4",
             "branchName": "3.4.x",
-            "slug": "latest",
+            "slug": "3.4",
             "upcoming": true
         },
         {