diff --git a/requirements.txt b/requirements.txt
index f5be769..5cbec5c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -23,7 +23,7 @@ pyasn1==0.4.5
 pycparser==2.19
 PyNaCl==1.3.0
 pyOpenSSL==19.0.0
-PyYAML==5.1
+PyYAML==5.4
 requests==2.21.0
 robotframework==3.1.1
 robotframework-angularjs==0.0.9