diff --git a/requirements.txt b/requirements.txt
index 29d5c59..49bebd1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ nltk==3.2.4
 olefile==0.44
 Pillow==4.2.1
 python-dateutil==2.6.1
-PyYAML==3.12
+PyYAML==5.4
 requests==2.18.1
 requests-file==1.4.2
 six==1.10.0