diff --git a/instrumentation/opentelemetry-instrumentation-aws-lambda/src/opentelemetry/instrumentation/aws_lambda/__init__.py b/instrumentation/opentelemetry-instrumentation-aws-lambda/src/opentelemetry/instrumentation/aws_lambda/__init__.py
index 95a9bf873d..8f29a0ec38 100644
--- a/instrumentation/opentelemetry-instrumentation-aws-lambda/src/opentelemetry/instrumentation/aws_lambda/__init__.py
+++ b/instrumentation/opentelemetry-instrumentation-aws-lambda/src/opentelemetry/instrumentation/aws_lambda/__init__.py
@@ -87,6 +87,7 @@ def custom_event_context_extractor(lambda_event):
     TRACE_HEADER_KEY,
     AwsXRayPropagator,
 )
+from opentelemetry.semconv.resource import ResourceAttributes
 from opentelemetry.semconv.trace import SpanAttributes
 from opentelemetry.trace import (
     Span,
@@ -358,11 +359,8 @@ def _instrumented_lambda_handler_call(  # noqa pylint: disable=too-many-branches
                 # See more:
                 # https://github.com/open-telemetry/semantic-conventions/blob/main/docs/faas/aws-lambda.md#all-triggers
                 account_id = lambda_context.invoked_function_arn.split(":")[4]
-
-                # TODO: Update key with semconvgen 1.23.0
-                # https://github.com/open-telemetry/semantic-conventions/issues/551
                 span.set_attribute(
-                    "cloud.account.id",
+                    ResourceAttributes.CLOUD_ACCOUNT_ID,
                     account_id,
                 )
 
diff --git a/instrumentation/opentelemetry-instrumentation-aws-lambda/tests/test_aws_lambda_instrumentation_manual.py b/instrumentation/opentelemetry-instrumentation-aws-lambda/tests/test_aws_lambda_instrumentation_manual.py
index 17152e6ce9..60e1357017 100644
--- a/instrumentation/opentelemetry-instrumentation-aws-lambda/tests/test_aws_lambda_instrumentation_manual.py
+++ b/instrumentation/opentelemetry-instrumentation-aws-lambda/tests/test_aws_lambda_instrumentation_manual.py
@@ -37,6 +37,7 @@
     TRACE_ID_FIRST_PART_LENGTH,
     TRACE_ID_VERSION,
 )
+from opentelemetry.semconv.resource import ResourceAttributes
 from opentelemetry.semconv.trace import SpanAttributes
 from opentelemetry.test.test_base import TestBase
 from opentelemetry.trace import NoOpTracerProvider, SpanKind, StatusCode
@@ -146,7 +147,7 @@ def test_active_tracing(self):
             {
                 SpanAttributes.CLOUD_RESOURCE_ID: MOCK_LAMBDA_CONTEXT.invoked_function_arn,
                 SpanAttributes.FAAS_INVOCATION_ID: MOCK_LAMBDA_CONTEXT.aws_request_id,
-                "cloud.account.id": MOCK_LAMBDA_CONTEXT.invoked_function_arn.split(":")[4],
+                ResourceAttributes.CLOUD_ACCOUNT_ID: MOCK_LAMBDA_CONTEXT.invoked_function_arn.split(":")[4],
             },
         )