diff --git a/requirements.txt b/requirements.txt
index 5494018..9559eaa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -66,6 +66,6 @@ sqlparse==0.2.4
 thinc==6.10.3
 toolz==0.9.0
 tqdm==4.26.0
-ujson==1.35
+ujson==5.2.0
 urllib3==1.23
 wrapt==1.10.11