diff --git a/doc/source/_exts/sigtable.py b/doc/source/_exts/sigtable.py
index dbb8303..76dd7f7 100644
--- a/doc/source/_exts/sigtable.py
+++ b/doc/source/_exts/sigtable.py
@@ -54,7 +54,7 @@ class SIGTable(Table):
         LOG.info('loading sigtable')
         LOG.info('reading %s' % filename)
         with open(filename, 'r') as f:
-            _teams_yaml = yaml.load(f.read())
+            _teams_yaml = yaml.safe_load(f.read())
 
         table = nodes.table()