diff --git a/.travis.yml b/.travis.yml
index 67a5f2ee..dd63d98f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -20,6 +20,8 @@ notifications:
         on_failure: always
 
 env:
+    - PG_VERSION=15 LEVEL=hardcore
+    - PG_VERSION=15
     - PG_VERSION=14 LEVEL=hardcore
     - PG_VERSION=14
     - PG_VERSION=13 LEVEL=hardcore