diff --git a/test/netutils/test_serialize.py b/test/netutils/test_serialize.py
new file mode 100644
index 0000000000..126424d6a7
--- /dev/null
+++ b/test/netutils/test_serialize.py
@@ -0,0 +1,11 @@
+import orjson
+import unittest
+from NetUtils import encode, decode
+
+
+class TestSerialize(unittest.TestCase):
+    def test_unbounded_int(self) -> None:
+        big_number = 2**200
+        round_tripped_big_number = decode(encode(orjson.Fragment(str(big_number).encode())))
+        self.assertEqual(big_number, round_tripped_big_number)
+        self.assertEqual(type(big_number), type(round_tripped_big_number))