diff --git a/python-test-samples/apigw-sqs-lambda-sqs/img/architecture.PNG b/python-test-samples/apigw-sqs-lambda-sqs/img/architecture.png
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rename from python-test-samples/apigw-sqs-lambda-sqs/img/architecture.PNG
rename to python-test-samples/apigw-sqs-lambda-sqs/img/architecture.png