diff --git a/graphene/types/schema.py b/graphene/types/schema.py
index 1ff0bff4..79341d83 100644
--- a/graphene/types/schema.py
+++ b/graphene/types/schema.py
@@ -27,7 +27,6 @@ from graphql import (
     GraphQLSchema,
     GraphQLString,
 )
-from graphql.execution import ExecutionContext
 from graphql.execution.values import get_argument_values
 
 from ..utils.str_converters import to_camel_case