diff --git a/buf.yaml b/buf.yaml
index bdd832ae..a09458dc 100644
--- a/buf.yaml
+++ b/buf.yaml
@@ -9,8 +9,7 @@ build:
     - google
 breaking:
   use:
-    # TODO (alex): revert it back to WIRE_JSON in follow up PR.
-    - WIRE
+    - WIRE_JSON
   ignore:
     - google
 lint: