diff --git a/src/widgets/swap-form/ui/SwapCard.tsx b/src/widgets/swap-form/ui/SwapCard.tsx
index a4b8e88..2aeec0b 100644
--- a/src/widgets/swap-form/ui/SwapCard.tsx
+++ b/src/widgets/swap-form/ui/SwapCard.tsx
@@ -79,7 +79,10 @@ export function SwapCard({
               className={styles.input}
               type="text"
               value={amount}
-              onChange={e => onAmountChange?.(e.target.value)}
+              onChange={e => {
+                const v = e.target.value
+                if (/^(\d+\.?\d*|\.?\d*)$/.test(v) || v === '') onAmountChange?.(v)
+              }}
               placeholder="0"
             />
           ) : (