diff --git a/src/components/ResultBox.tsx b/src/components/ResultBox.tsx
index 0822aa4..3786631 100644
--- a/src/components/ResultBox.tsx
+++ b/src/components/ResultBox.tsx
@@ -92,7 +92,7 @@ export function ResultContainer({
   isExpanded,
 }: ResultContainerProps) {
   useEffect(() => {
-    const version = "1.1";
+    const version = "1.2";
     const localVersion = localStorage.getItem("version");
     if (version !== localVersion) {
       const keys = Object.keys(localStorage);
diff --git a/src/pages/index.tsx b/src/pages/index.tsx
index fe23537..f9bb08e 100644
--- a/src/pages/index.tsx
+++ b/src/pages/index.tsx
@@ -173,7 +173,16 @@ export default function Home() {
                   className={`mt-2`}
                   variant={`default`}
                   disabled={loader.translate}
-                  onClick={submit}
+                  onClick={() => {
+                    if (from === to) {
+                      toast({
+                        title: "Translate Error",
+                        description: '源语言和目标语言不能相同',
+                      });
+                    } else {
+                      submit()
+                    }
+                  }}
                 >
                   {loader.translate && (
                     <Loader2 className={`h-4 w-4 mr-1 animate-spin`} />