diff --git a/tests/utils/jsonrpc_test.py b/tests/utils/jsonrpc_test.py
index 64b5e628..c3c4b1a0 100644
--- a/tests/utils/jsonrpc_test.py
+++ b/tests/utils/jsonrpc_test.py
@@ -260,7 +260,7 @@ class JsonRpcBatchTest(JsonRpcTestBase):
 
         self.assertEqual(len(response), 3)
 
-        response = {row['id']: row for row in response}
+        response = dict((row['id'], row) for row in response)
         self.assertEqual(response[1]['result'], False)
         self.assertEqual(response[2]['result'], True)
         self.assertEqual(response[3]['result'], False)