diff --git a/requirements.txt b/requirements.txt
index 35a2a31..fa49c7d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -118,7 +118,7 @@ python-oauth2==1.1.0
 python-pptx==0.6.5
 pytz==2018.4
 PyWavelets==0.5.2
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==17.0.0
 qtconsole==4.3.1
 regex==2018.1.10