diff --git a/api/proto/buf.yaml b/api/proto/buf.yaml
index fd40a9a76d836..5f49d706241b0 100644
--- a/api/proto/buf.yaml
+++ b/api/proto/buf.yaml
@@ -56,4 +56,4 @@ lint:
       - teleport/transport/v1/transport_service.proto
 breaking:
   use:
-    - FILE
+    - WIRE_JSON
diff --git a/proto/buf.yaml b/proto/buf.yaml
index 85d1088d90e78..77a2e3adc57fa 100644
--- a/proto/buf.yaml
+++ b/proto/buf.yaml
@@ -10,10 +10,10 @@ lint:
     - COMMENT_RPC
     - COMMENT_SERVICE
   except:
-   # Allow Google API-style responses (CreateFoo returns Foo).
-   # See https://cloud.google.com/apis/design/standard_methods.
-   - RPC_REQUEST_RESPONSE_UNIQUE
-   - RPC_RESPONSE_STANDARD_NAME
+    # Allow Google API-style responses (CreateFoo returns Foo).
+    # See https://cloud.google.com/apis/design/standard_methods.
+    - RPC_REQUEST_RESPONSE_UNIQUE
+    - RPC_RESPONSE_STANDARD_NAME
   ignore:
     # "legacy" lib protos.
     - teleport/lib/multiplexer/test/ping.proto
@@ -44,4 +44,4 @@ lint:
       - prehog
 breaking:
   use:
-    - FILE
+    - WIRE_JSON