diff --git a/requirements.txt b/requirements.txt
index 5e5da78..6ba0028 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ msgpack==0.6.2
 odfpy==1.4.0
 openpyxl==2.6.3
 pytz==2019.2
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 six==1.12.0
 sqlparse==0.3.0