diff --git a/comfy_api_nodes/apis/wan.py b/comfy_api_nodes/apis/wan.py
index 4ee704bc9..c64acae97 100644
--- a/comfy_api_nodes/apis/wan.py
+++ b/comfy_api_nodes/apis/wan.py
@@ -118,7 +118,7 @@ class Wan27ReferenceVideoInputField(BaseModel):
 class Wan27ReferenceVideoParametersField(BaseModel):
     resolution: str = Field(...)
     ratio: str | None = Field(None)
-    duration: int = Field(5, ge=2, le=10)
+    duration: int = Field(5, ge=2, le=15)
     watermark: bool = Field(False)
     seed: int = Field(..., ge=0, le=2147483647)