diff --git a/web/app/components/workflow/nodes/llm/use-config.ts b/web/app/components/workflow/nodes/llm/use-config.ts
index 8c2206867..963a60d4b 100644
--- a/web/app/components/workflow/nodes/llm/use-config.ts
+++ b/web/app/components/workflow/nodes/llm/use-config.ts
@@ -246,7 +246,7 @@ const useConfig = (id: string, payload: LLMNodeType) => {
   }, [inputs, setInputs])
 
   const handlePromptChange = useCallback((newPrompt: PromptItem[] | PromptItem) => {
-    const newInputs = produce(inputs, (draft) => {
+    const newInputs = produce(inputRef.current, (draft) => {
       draft.prompt_template = newPrompt
     })
     setInputs(newInputs)