diff --git a/requirements.txt b/requirements.txt
index 243748f..7ffdd51 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -26,6 +26,6 @@ pycparser==2.18
 
 PyNaCl==1.2.1
 
-PyYAML==3.12
+PyYAML==5.4
 
 six==1.11.0