diff --git a/roles/devserver/userland-software/files/shell.py b/roles/devserver/userland-software/files/shell.py
--- a/roles/devserver/userland-software/files/shell.py
+++ b/roles/devserver/userland-software/files/shell.py
@@ -61,7 +61,7 @@
 
 def parse_configuration_file(filename):
     configuration_file = open(filename, 'r')
-    configuration = yaml.load(configuration_file)
+    configuration = yaml.safe_load(configuration_file)
     configuration_file.close()
 
     return configuration