diff --git a/openchallenges/data_integration_lambda.py b/openchallenges/data_integration_lambda.py
index af1554a..5ee0849 100644
--- a/openchallenges/data_integration_lambda.py
+++ b/openchallenges/data_integration_lambda.py
@@ -35,5 +35,4 @@ def _build_lambda_function(self, role: iam.Role) -> _lambda.Function:
             ),
             role=role,
             memory_size=128,
-            architecture=_lambda.Architecture.X86_64,
         )