diff --git a/requirements.txt b/requirements.txt
index 4663829..cd63820 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,7 @@ pyasn1==0.4.8
 pyasn1-modules==0.2.7
 PyDrive==1.3.1
 python-magic==0.4.15
-PyYAML==5.1.2
+PyYAML==5.4
 requests==2.22.0
 requests-oauthlib==1.3.0
 rsa==4.0