diff --git a/CHANGELOG.md b/CHANGELOG.md
index 58c23b2f..b5a7b38f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,8 @@
   - **Feature:** New field `Path` for `Rule`
 - `authorization`: [v0.2.4](services/authorization/CHANGELOG.md#v024-2025-05-13)
   - **Bugfix:** Updated regex validator
+- `iaas`: [v0.5.2](services/iaas/CHANGELOG.md#v052-2025-05-19)
+  - **Improvement:** Update descriptions
 - `lbapplication`: [v0.3.2](services/lbapplication/CHANGELOG.md#v032-2025-05-14)
   - **Deprecated:** `lbapplication` service is deprecated and no longer maintained. Use the `alb` service instead
 - `resourcemanager` [v0.4.0](services/resourcemanager/CHANGELOG.md#v040-2025-05-14)
diff --git a/services/iaas/CHANGELOG.md b/services/iaas/CHANGELOG.md
index 0504e0d2..3f89a9fd 100644
--- a/services/iaas/CHANGELOG.md
+++ b/services/iaas/CHANGELOG.md
@@ -1,3 +1,6 @@
+## v0.5.2 (2025-05-19)
+- **Improvement:** Update descriptions
+
 ## v0.5.1 (2025-05-09)
 - **Feature:** Update user-agent header
 
diff --git a/services/iaas/pyproject.toml b/services/iaas/pyproject.toml
index 67783ae3..487ae821 100644
--- a/services/iaas/pyproject.toml
+++ b/services/iaas/pyproject.toml
@@ -3,7 +3,7 @@ name = "stackit-iaas"
 
 [tool.poetry]
 name = "stackit-iaas"
-version = "v0.5.1"
+version = "v0.5.2"
 authors = [
     "STACKIT Developer Tools <developer-tools@stackit.cloud>",
 ]
diff --git a/services/iaas/src/stackit/iaas/models/create_nic_payload.py b/services/iaas/src/stackit/iaas/models/create_nic_payload.py
index b45cae96..4c961e4e 100644
--- a/services/iaas/src/stackit/iaas/models/create_nic_payload.py
+++ b/services/iaas/src/stackit/iaas/models/create_nic_payload.py
@@ -50,7 +50,7 @@ class CreateNicPayload(BaseModel):
         default=None, description="Object that represents an IP address."
     )
     ipv6: Optional[Annotated[str, Field(strict=True)]] = Field(
-        default=None, description="Object that represents an IPv6 address."
+        default=None, description="String that represents an IPv6 address."
     )
     labels: Optional[Dict[str, Any]] = Field(
         default=None,
diff --git a/services/iaas/src/stackit/iaas/models/nic.py b/services/iaas/src/stackit/iaas/models/nic.py
index 60fc8123..9ea20bdd 100644
--- a/services/iaas/src/stackit/iaas/models/nic.py
+++ b/services/iaas/src/stackit/iaas/models/nic.py
@@ -50,7 +50,7 @@ class NIC(BaseModel):
         default=None, description="Object that represents an IP address."
     )
     ipv6: Optional[Annotated[str, Field(strict=True)]] = Field(
-        default=None, description="Object that represents an IPv6 address."
+        default=None, description="String that represents an IPv6 address."
     )
     labels: Optional[Dict[str, Any]] = Field(
         default=None,
diff --git a/services/iaas/src/stackit/iaas/models/server_network.py b/services/iaas/src/stackit/iaas/models/server_network.py
index 28e8894e..57340bf2 100644
--- a/services/iaas/src/stackit/iaas/models/server_network.py
+++ b/services/iaas/src/stackit/iaas/models/server_network.py
@@ -37,7 +37,7 @@ class ServerNetwork(BaseModel):
         default=None, description="Object that represents an IP address."
     )
     ipv6: Optional[Annotated[str, Field(strict=True)]] = Field(
-        default=None, description="Object that represents an IPv6 address."
+        default=None, description="String that represents an IPv6 address."
     )
     mac: Annotated[str, Field(strict=True)] = Field(description="Object that represents an MAC address.")
     network_id: Annotated[str, Field(min_length=36, strict=True, max_length=36)] = Field(