diff --git a/generators/php/sdk/versions.yml b/generators/php/sdk/versions.yml
index 8fd359a75df..c9a63e645a9 100644
--- a/generators/php/sdk/versions.yml
+++ b/generators/php/sdk/versions.yml
@@ -1,3 +1,8 @@
+- version: 0.1.5
+  changelogEntry:
+    - type: feat
+      summary: >-
+        Support undiscriminated unions.
 - version: 0.1.4
   changelogEntry:
     - type: fix