diff --git a/requirements.txt b/requirements.txt
index ddc757f..2a005ee 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -20,7 +20,7 @@ pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==2.4.7
 pytorch-lightning==0.9.0
-PyYAML==5.3.1
+PyYAML==5.4
 regex==2020.7.14
 requests==2.24.0
 requests-oauthlib==1.3.0