diff --git a/cleanup/retf/retf.py b/cleanup/retf/retf.py
index 1d3596e6..926f66d1 100755
--- a/cleanup/retf/retf.py
+++ b/cleanup/retf/retf.py
@@ -194,7 +194,7 @@ def load_disabled_rules(src):
 
     if src:
         try:
-            listing = yaml.load(open(src))
+            listing = yaml.safe_load(open(src))
             for rule in listing:
                 logger.debug("Rule '%s' is disabled.", rule)