diff --git a/events.proto b/events.proto
index 94bd11a..65ebb98 100644
--- a/events.proto
+++ b/events.proto
@@ -1,10 +1,10 @@
-syntax = "proto2";
+syntax = "proto3";
 package witProto;
 
-enum FOO { X = 17; };
+enum FOO { X = 0; };
 
 message Event {
-	required string label = 1;
-	optional int32 type = 2 [default=77];
+	string label = 1;
+	int32 type = 2;
 	repeated int64 reps = 3;
 }