diff --git a/setup.py b/setup.py
old mode 100755
new mode 100644
index 83773f3..a92a646
--- a/setup.py
+++ b/setup.py
@@ -22,5 +22,5 @@
     ],
     
     # We use boto for interacting with AWS services, YAML for storing configuration
-    install_requires = ['boto>=2.7.0', 'PyYAML==3.10']    
+    install_requires = ['boto>=2.7.0', 'PyYAML==5.4']    
 )