diff --git a/services/kms/oas_commit b/services/kms/oas_commit
index e05d493f3..9510a8946 100644
--- a/services/kms/oas_commit
+++ b/services/kms/oas_commit
@@ -1 +1 @@
-da4701b7dbe20e984aef89711bb9ba716e19fcba
+c9fb47b3087043293b6f77e5d3b778784de27ef2
diff --git a/services/kms/src/stackit/kms/models/import_key_payload.py b/services/kms/src/stackit/kms/models/import_key_payload.py
index 26eca8e5c..f6bb53fdd 100644
--- a/services/kms/src/stackit/kms/models/import_key_payload.py
+++ b/services/kms/src/stackit/kms/models/import_key_payload.py
@@ -18,9 +18,9 @@
 from typing import Any, ClassVar, Dict, List, Optional, Set
 from uuid import UUID
 
-from pydantic import BaseModel, ConfigDict, Field, StrictStr
+from pydantic import BaseModel, ConfigDict, Field
 from pydantic_core import to_jsonable_python
-from typing_extensions import Self
+from typing_extensions import Annotated, Self
 
 
 class ImportKeyPayload(BaseModel):
@@ -28,7 +28,7 @@ class ImportKeyPayload(BaseModel):
     ImportKeyPayload
     """  # noqa: E501
 
-    wrapped_key: StrictStr = Field(
+    wrapped_key: Annotated[str, Field(strict=True, max_length=85336)] = Field(
         description="The wrapped key material that has to be imported. Encoded in base64.", alias="wrappedKey"
     )
     wrapping_key_id: UUID = Field(