diff --git a/requirements.txt b/requirements.txt
index 427917f..6e81320 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ chardet==3.0.4
 idna==2.7
 oauthlib==2.1.0
 PySocks==1.6.8
-PyYAML==3.12
+PyYAML==5.4
 requests==2.19.1
 requests-oauthlib==1.0.0
 six==1.11.0