diff --git a/do_history.py b/do_history.py
index 5c64aa2..ec09b23 100644
--- a/do_history.py
+++ b/do_history.py
@@ -635,9 +635,12 @@ def main():
     print()
     print("Building history output...")
 
-    output_dict = {}
-    for request_id, history_data in all_results:
-        output_dict[request_id] = history_data  # None → JSON null for failed requests
+    output_dict = dict(
+        sorted(
+            ((request_id, history_data) for request_id, history_data in all_results),
+            key=lambda x: x[0],
+        )
+    )
 
     # === BACKUP & WRITE ===
     try: