diff --git a/requirements.txt b/requirements.txt
index d66edb8..fb8b7a1 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -16,7 +16,7 @@ odfpy==1.3.6
 openpyxl==2.5.0
 Pillow==5.0.0
 pytz==2018.3
-PyYAML==3.12
+PyYAML==5.4
 six==1.10.0
 tablib==0.12.1
 unicodecsv==0.14.1