diff --git a/services/telemetrylink/oas_commit b/services/telemetrylink/oas_commit
index 1538b64bb..7a12ddb36 100644
--- a/services/telemetrylink/oas_commit
+++ b/services/telemetrylink/oas_commit
@@ -1 +1 @@
-d5bd75f47f4b364fa6f71663efb4ba41ec703ac8
+0541956d9042c7a49cbdbc87670544e46ad7c712
diff --git a/services/telemetrylink/src/stackit/telemetrylink/models/telemetry_link_response.py b/services/telemetrylink/src/stackit/telemetrylink/models/telemetry_link_response.py
index d5a134fa8..ace9b0f07 100644
--- a/services/telemetrylink/src/stackit/telemetrylink/models/telemetry_link_response.py
+++ b/services/telemetrylink/src/stackit/telemetrylink/models/telemetry_link_response.py
@@ -39,7 +39,7 @@ class TelemetryLinkResponse(BaseModel):
 
     access_token: Optional[StrictStr] = Field(default=None, description="The access token.", alias="accessToken")
     create_time: datetime = Field(description="The point in time the resource was created.", alias="createTime")
-    description: Optional[StrictStr] = Field(
+    description: Optional[Annotated[str, Field(strict=True, max_length=1024)]] = Field(
         default=None,
         description="The description is a longer text chosen by the user to provide more context for the resource.",
     )
@@ -80,6 +80,19 @@ def create_time_change_year_zero_to_one(cls, value):
                 return "0001" + value[4:]  # Take "0001" and append the rest of the string
         return value
 
+    @field_validator("description")
+    def description_validate_regular_expression(cls, value):
+        """Validates the regular expression"""
+        if value is None:
+            return value
+
+        if not isinstance(value, str):
+            value = str(value)
+
+        if not re.match(r"^([a-zA-Z0-9][a-zA-Z0-9 \-]*)?$", value):
+            raise ValueError(r"must validate the regular expression /^([a-zA-Z0-9][a-zA-Z0-9 \-]*)?$/")
+        return value
+
     @field_validator("region_id")
     def region_id_validate_enum(cls, value):
         """Validates the enum"""