diff --git a/ptb9.json b/ptb9.json
index 5eceae8..ec400bd 100644
--- a/ptb9.json
+++ b/ptb9.json
@@ -42,10 +42,17 @@
           "bank_direction_low": "output",
           "bank_direction_high": "output"
         },
+        {
+          "type": "urukul",
+          "hw_rev": "v1.5",
+          "ports": [4],
+          "clk_sel": 2,
+          "synchronization": true
+        },
         {
           "type": "zotino",
           "hw_rev": "v1.3",
-          "ports": [4]
+          "ports": [5]
         },
         {
           "type": "urukul",