diff --git a/requirements.txt b/requirements.txt
index c5f19d5..7b57e9e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,5 +3,5 @@ scikit-learn==0.19.1
 scipy==1.0.0
 gensim==3.2.0
 pandas==0.23.4
-ujson==1.35
+ujson==5.2.0
 spacy==2.0.11
\ No newline at end of file