diff --git a/requirements.txt b/requirements.txt
index a2c19ad..95bc8e4 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -144,7 +144,7 @@ tornado==4.5.1
 tqdm==4.15.0
 traitlets==4.3.2
 Twisted==17.5.0
-ujson==1.35
+ujson==5.4.0
 unicodecsv==0.14.1
 urllib3==1.22
 vaderSentiment==2.5