diff --git a/filter_plugins/filters.py b/filter_plugins/filters.py
index fdf1bcb..b99684e 100755
--- a/filter_plugins/filters.py
+++ b/filter_plugins/filters.py
@@ -16,7 +16,7 @@ class FilterModule(object):
 				}
 			for override in rule_defaults:
 				rule.update(override)
-			if not isinstance(input_rules[rule_name], collections.Mapping):
+			if not isinstance(input_rules[rule_name], collections.abc.Mapping):
 				rule['matches'] = input_rules[rule_name]
 			else:
 				rule.update(input_rules[rule_name])