diff --git a/probabilistic-analysis/probabilistic_assessment.py b/probabilistic-analysis/probabilistic_assessment.py
index 80be570..59c690e 100644
--- a/probabilistic-analysis/probabilistic_assessment.py
+++ b/probabilistic-analysis/probabilistic_assessment.py
@@ -78,7 +78,7 @@ def read_parameter_file(fname):
     """
     with open(fname, 'r') as stream:
         try:
-            params = yaml.load(stream)
+            params = yaml.safe_load(stream)
         except yaml.YAMLError as exc:
             print(exc, "\nCheck the formatting of the yaml file.")