diff --git a/requirements.txt b/requirements.txt
index 788e989..25383c5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@ pyjson5==2.0.1
 pysimdjson==6.0.2 ; python_version < '3.13'
 python-rapidjson==1.23
 simplejson==4.1.1
-ujson==5.11.0
+ujson==5.13.0