diff --git a/requirements.txt b/requirements.txt
index 888e0b2..facbca3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,4 +4,4 @@ gensim==3.4.0
 torch==0.4.0
 lorem==0.1.1
 scikit_learn==0.19.1
-PyYAML==3.12
+PyYAML==5.1