diff --git a/requirements.txt b/requirements.txt
index 0e060a1..c08937b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -29,7 +29,7 @@ pycodestyle==2.3.1
 pygtp==0.4
 pylint==1.8.2
 pytz==2018.3
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.4
 rsa==3.4.2
 scipy==1.1.0