diff --git a/requirements.txt b/requirements.txt
index ce83403..66c2a0e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,7 +30,7 @@ ptyprocess==0.5.1
 Pygments==2.2.0
 pyparsing==2.2.0
 python-dateutil==2.6.0
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==16.0.2
 qtconsole==4.3.0
 requests==2.13.0