diff --git a/src/spring/azext_spring/_params.py b/src/spring/azext_spring/_params.py
index f6c25b9f2d8..49cef88d167 100644
--- a/src/spring/azext_spring/_params.py
+++ b/src/spring/azext_spring/_params.py
@@ -125,7 +125,7 @@ def load_arguments(self, _):
                    help='Ingress read timeout value in seconds. Default 300, Minimum is 1, maximum is 1800.',
                    validator=validate_ingress_timeout)
         c.argument('build_pool_size',
-                   arg_type=get_enum_type(['S1', 'S2', 'S3', 'S4', 'S5']),
+                   arg_type=get_enum_type(['S1', 'S2', 'S3', 'S4', 'S5', 'S6', 'S7', 'S8', 'S9']),
                    validator=validate_build_pool_size,
                    help='(Enterprise Tier Only) Size of build agent pool. See https://aka.ms/azure-spring-cloud-build-service-docs for size info.')
         c.argument('enable_application_configuration_service',
@@ -200,7 +200,7 @@ def load_arguments(self, _):
                                               redirect='az spring app-insights update --disable',
                                               hide=True))
         c.argument('build_pool_size',
-                   arg_type=get_enum_type(['S1', 'S2', 'S3', 'S4', 'S5']),
+                   arg_type=get_enum_type(['S1', 'S2', 'S3', 'S4', 'S5', 'S6', 'S7', 'S8', 'S9']),
                    help='(Enterprise Tier Only) Size of build agent pool. See https://aka.ms/azure-spring-cloud-build-service-docs for size info.')
         c.argument('enable_log_stream_public_endpoint',
                    arg_type=get_three_state_flag(),