diff --git a/blockchain_datacraw/requirements.txt b/blockchain_datacraw/requirements.txt
index afaa133..937de8c 100644
--- a/blockchain_datacraw/requirements.txt
+++ b/blockchain_datacraw/requirements.txt
@@ -143,7 +143,7 @@ pytz==2018.4
 PyWavelets==0.5.2
 pywin32==223
 pywinpty==0.5.1
-PyYAML==3.12
+PyYAML==5.4
 pyzmq==17.0.0
 QtAwesome==0.4.4
 qtconsole==4.3.1