diff --git a/proj1/requirements.txt b/proj1/requirements.txt
index e911f7c..189383e 100644
--- a/proj1/requirements.txt
+++ b/proj1/requirements.txt
@@ -146,7 +146,7 @@ pytest==3.2.1
 python-dateutil==2.6.1
 pytz==2017.2
 PyWavelets==0.5.2
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==16.0.2
 QtAwesome==0.4.4
 qtconsole==4.3.1