diff --git a/README.md b/README.md
index c595bc6..b23c892 100644
--- a/README.md
+++ b/README.md
@@ -150,7 +150,7 @@ conversation threads from prompt to leaf node are stricly alternating between "p
 For readability the following JSON examples are shown formatted with indentation on multiple lines.
 Objects are stored without indentation on a single lines in the actual jsonl files.
 
-```
+```json
 {
     "message_id": "218440fd-5317-4355-91dc-d001416df62b",
     "parent_id": "13592dfb-a6f9-4748-a92c-32b34e239bb4",
@@ -184,7 +184,7 @@ Objects are stored without indentation on a single lines in the actual jsonl fil
 
 For readability only a subset of the message properties is shown here.
 
-```
+```json
 {
   "message_tree_id": "14fbb664-a620-45ce-bee4-7c519b16a793",
   "tree_state": "ready_for_export",