diff --git a/requirements.txt b/requirements.txt
index 5c4aae6..66ebb06 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ olefile==0.44
 Pillow==4.3.0
 pytesseract==0.1.7
 pytz==2017.2
-PyYAML==3.12
+PyYAML==5.4
 requests==2.11.1
 six==1.11.0
 texttable==0.9.1