diff --git a/requirements.txt b/requirements.txt
index a737532..6529c5a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ pytesseract==0.3.4
 python-dateutil==2.8.1
 pytz==2019.3
 PyWavelets==1.1.1
-PyYAML==5.2
+PyYAML==5.4
 requests==2.22.0
 requests-oauthlib==1.3.0
 rsa==4.0