diff --git a/graphql/execution/base.py b/graphql/execution/base.py
index 7929cd5a..533faafa 100644
--- a/graphql/execution/base.py
+++ b/graphql/execution/base.py
@@ -285,10 +285,14 @@ def __init__(self, field_name, field_asts, return_type, parent_type,
 
 
 def default_resolve_fn(source, args, context, info):
-    """If a resolve function is not given, then a default resolve behavior is used which takes the property of the source object
+    """If a resolve function is not given, then a default resolve behavior is used which takes the property of the source object or dict
     of the same name as the field and returns it as the result, or if it's a function, returns the result of calling that function."""
     name = info.field_name
-    property = getattr(source, name, None)
+    property = None
+    if hasattr(source, name):
+        property = getattr(source, name)
+    elif type(source) is dict:
+        property = source.get(name)
     if callable(property):
         return property()
     return property
diff --git a/graphql/execution/tests/test_resolve.py b/graphql/execution/tests/test_resolve.py
index 42b96899..6695bf49 100644
--- a/graphql/execution/tests/test_resolve.py
+++ b/graphql/execution/tests/test_resolve.py
@@ -190,3 +190,10 @@ def resolver(source, args, *_):
     assert result.data == {
         'test': '["Source!",{"a_input":{"input_recursive":{"input_one":"SourceRecursive!"}}}]'
     }
+
+
+def test_default_resolve_works_with_dicts():
+    schema = _test_schema(GraphQLField(GraphQLString))
+    result = graphql(schema, '{ test }', {'test': 'testValue'})
+    assert not result.errors
+    assert result.data == {'test': 'testValue'}