diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5b1b4dc4..a88a1689f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 ## Release (2025-xx-xx)
-- `stackitmarketplace`: [v1.10.0](services/stackitmarketplace/CHANGELOG.md#v1100)
-  - **Feature:** Added `PlanId` to `CatalogProductPricingOption`and `SubscriptionProduct`
+- `stackitmarketplace`:
+  - [v1.11.0](services/stackitmarketplace/CHANGELOG.md#v1110)
+    - **Feature:** Add new field `DemoUrl` to `CatalogProductDetail` model
+  - [v1.10.0](services/stackitmarketplace/CHANGELOG.md#v1100)
+    - **Feature:** Added `PlanId` to `CatalogProductPricingOption` and `SubscriptionProduct`
 
 ## Release (2025-09-11)
 - `cdn`: [v1.6.0](services/cdn/CHANGELOG.md#v160)
diff --git a/services/stackitmarketplace/CHANGELOG.md b/services/stackitmarketplace/CHANGELOG.md
index 9b0e3d78c..71778a32e 100644
--- a/services/stackitmarketplace/CHANGELOG.md
+++ b/services/stackitmarketplace/CHANGELOG.md
@@ -1,5 +1,8 @@
+## v1.11.0
+- **Feature:** Add new field `DemoUrl` to `CatalogProductDetail` model
+
 ## v1.10.0
-- **Feature:** Added `PlanId` to `CatalogProductPricingOption`and `SubscriptionProduct`
+- **Feature:** Added `PlanId` to `CatalogProductPricingOption` and `SubscriptionProduct`
 
 ## v1.9.0
 - **Feature:** Added `RequestPrivatePlan` to `InquiriesCreateInquiryPayload`
diff --git a/services/stackitmarketplace/pyproject.toml b/services/stackitmarketplace/pyproject.toml
index 821ac380b..76c8352ed 100644
--- a/services/stackitmarketplace/pyproject.toml
+++ b/services/stackitmarketplace/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-stackitmarketplace"
 
 [tool.poetry]
 name = "stackit-stackitmarketplace"
-version = "v1.10.0"
+version = "v1.11.0"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
diff --git a/services/stackitmarketplace/src/stackit/stackitmarketplace/models/catalog_product_detail.py b/services/stackitmarketplace/src/stackit/stackitmarketplace/models/catalog_product_detail.py
index cf1b53170..2d2563779 100644
--- a/services/stackitmarketplace/src/stackit/stackitmarketplace/models/catalog_product_detail.py
+++ b/services/stackitmarketplace/src/stackit/stackitmarketplace/models/catalog_product_detail.py
@@ -63,6 +63,9 @@ class CatalogProductDetail(BaseModel):
         default=None, description="The list of categories associated to the product."
     )
     delivery_method: DeliveryMethod = Field(alias="deliveryMethod")
+    demo_url: Optional[Annotated[str, Field(strict=True, max_length=512)]] = Field(
+        default=None, description="The URL to a demo if available.", alias="demoUrl"
+    )
     description: StrictStr = Field(description="The product description.")
     documentation_url: Annotated[str, Field(strict=True, max_length=512)] = Field(
         description="The documentation URL.", alias="documentationUrl"
@@ -108,6 +111,7 @@ class CatalogProductDetail(BaseModel):
         "assets",
         "categories",
         "deliveryMethod",
+        "demoUrl",
         "description",
         "documentationUrl",
         "email",
@@ -129,6 +133,18 @@ class CatalogProductDetail(BaseModel):
         "videoUrl",
     ]
 
+    @field_validator("demo_url")
+    def demo_url_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not re.match(r"^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$", value):
+            raise ValueError(
+                r"must validate the regular expression /^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/"
+            )
+        return value
+
     @field_validator("documentation_url")
     def documentation_url_validate_regular_expression(cls, value):
         """Validates the regular expression"""
@@ -260,6 +276,7 @@ def from_dict(cls, obj: Optional[Dict[str, Any]]) -> Optional[Self]:
                 "assets": Assets.from_dict(obj["assets"]) if obj.get("assets") is not None else None,
                 "categories": obj.get("categories"),
                 "deliveryMethod": obj.get("deliveryMethod"),
+                "demoUrl": obj.get("demoUrl"),
                 "description": obj.get("description"),
                 "documentationUrl": obj.get("documentationUrl"),
                 "email": obj.get("email"),