diff --git a/index.d.ts b/index.d.ts
index a9bbf33e1..1ef70ca57 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -92,4 +92,6 @@ declare namespace dayjs {
   export function locale(arg1: any, arg2?: any): string
 
   export function isDayjs(d: any): d is Dayjs
+  
+  export function unix(t: number): Dayjs
 }