diff --git a/src/ui.text-number/utilNumber.ts b/src/ui.text-number/utilNumber.ts
index 5f2c0e67..de2acc3e 100644
--- a/src/ui.text-number/utilNumber.ts
+++ b/src/ui.text-number/utilNumber.ts
@@ -7,7 +7,7 @@ export const MATH_SIGN_TYPE = {
 
 export const MATH_SIGN = {
   PLUS: "+",
-  MINUS: "-",
+  MINUS: "–",
 };
 
 export const SINGLE_ZERO = "0";