diff --git a/packages/cmk-plugins/cmk/plugins/kube/schemata/api.py b/packages/cmk-plugins/cmk/plugins/kube/schemata/api.py
index b2f8479db68..2667da4db44 100644
--- a/packages/cmk-plugins/cmk/plugins/kube/schemata/api.py
+++ b/packages/cmk-plugins/cmk/plugins/kube/schemata/api.py
@@ -649,7 +649,7 @@ class StatefulSetRollingUpdate(BaseModel):
 
     type_: Literal["StatefulSetRollingUpdate"] = Field("StatefulSetRollingUpdate")
     partition: int
-    max_unavailable: str | None = Field(None)
+    max_unavailable: str | int | None = Field(None)
 
 
 class Recreate(BaseModel):