diff --git a/libmapper-osc/diagram.json b/libmapper-osc/diagram.json
index 5acbcf0..954a8b9 100644
--- a/libmapper-osc/diagram.json
+++ b/libmapper-osc/diagram.json
@@ -4,7 +4,7 @@
   "editor": "wokwi",
   "parts": [
     {
-      "type": "board-esp32-s3-devkitc-1",
+      "type": "board-esp32-c3-devkitm-1",
       "id": "esp"
     }
   ],