diff --git a/requirements.txt b/requirements.txt
index 3a13533..21d4d08 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -17,7 +17,7 @@ MarkupSafe==1.1.1
 Naked==0.1.31
 oss2==2.8.0
 pycryptodome==3.9.0
-PyYAML==5.1.2
+PyYAML==5.4
 redis==3.3.8
 requests==2.22.0
 shellescape==3.4.1