diff --git a/stfcsatellite.json b/stfcsatellite.json
index 2c4e709..8b6e01b 100644
--- a/stfcsatellite.json
+++ b/stfcsatellite.json
@@ -15,8 +15,8 @@
         {
             "type": "suservo",
             "sampler_ports": [10, 11],
-            "urukul0_ports": [6, 7],
-            "urukul1_ports": [5, 6],
+            "urukul0_ports": [4, 5],
+            "urukul1_ports": [6, 7],
             "clk_sel": 2
         }
     ]