diff --git a/rest/python/client/flower_shop/pyproject.toml b/rest/python/client/flower_shop/pyproject.toml
index c93378f..785860d 100644
--- a/rest/python/client/flower_shop/pyproject.toml
+++ b/rest/python/client/flower_shop/pyproject.toml
@@ -10,7 +10,7 @@ authors = [
 dependencies = [
     "cryptography>=42",
     "pydantic>=2.12.0",
-    "ucp-sdk",
+    "ucp-sdk>=0.4.6,<0.5",
 ]
 
 [dependency-groups]
diff --git a/rest/python/server/integration_test.py b/rest/python/server/integration_test.py
index 55b0ba6..1e55400 100644
--- a/rest/python/server/integration_test.py
+++ b/rest/python/server/integration_test.py
@@ -81,7 +81,7 @@
   line_item_create_request as line_item_create_req,
 )
 from ucp_sdk.models.schemas.shopping.types import (
-  shipping_destination as shipping_destination_req,
+  shipping_destination_create_request as shipping_destination_req,
 )
 
 FLAGS = flags.FLAGS
@@ -250,7 +250,7 @@ def _create_checkout_payload(
     payment = payment_create_req.PaymentCreateRequest(instruments=[])
 
     # Hierarchical Fulfillment Construction
-    destination = shipping_destination_req.ShippingDestination(
+    destination = shipping_destination_req.ShippingDestinationCreateRequest(
       id="dest_1", address_country="US"
     )
     group = fulfillment_group_create_req.FulfillmentGroupCreateRequest(
diff --git a/rest/python/server/pyproject.toml b/rest/python/server/pyproject.toml
index 6341629..4759a5d 100644
--- a/rest/python/server/pyproject.toml
+++ b/rest/python/server/pyproject.toml
@@ -17,7 +17,7 @@ dependencies = [
     "greenlet>=3.0.0",
     "fastapi-code-generator>=0.5.4",
     "click==8.1.7",
-    "ucp-sdk",
+    "ucp-sdk>=0.4.6,<0.5",
     "shortuuid",
     "httpx>=0.26.0",
     "cryptography>=42",