diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 07a0536..153c5ec
--- a/requirements.txt
+++ b/requirements.txt
@@ -140,7 +140,7 @@ python-dateutil==2.6.1
 python-monkey-business==1.0.0
 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