diff --git a/01.md b/01.md
index f7f592c..a3d23f8 100644
--- a/01.md
+++ b/01.md
@@ -14,7 +14,7 @@ Each user has a keypair. Signatures, public key, and encodings are done accordin
 
 The only object type that exists is the `event`, which has the following format on the wire:
 
-```jsonc
+```yaml
 {
   "id": <32-bytes lowercase hex-encoded sha256 of the serialized event data>,
   "pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
@@ -120,7 +120,7 @@ Clients can send 3 types of messages, which must be JSON arrays, according to th
 
 `<filtersX>` is a JSON object that determines what events will be sent in that subscription, it can have the following attributes:
 
-```json
+```yaml
 {
   "ids": <a list of event ids>,
   "authors": <a list of lowercase pubkeys, the pubkey of an event must be one of these>,