diff --git a/requirements.txt b/requirements.txt
index d996ebd..b087ddd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -72,7 +72,7 @@ thinc==7.1.1
 tornado==6.0.3
 tqdm==4.36.1
 tweepy==3.8.0
-ujson==1.35
+ujson==5.2.0
 urllib3==1.24.2
 vine==1.3.0
 wasabi==0.2.2