diff --git a/README.md b/README.md
index 7ff59997..a0c88241 100644
--- a/README.md
+++ b/README.md
@@ -758,12 +758,12 @@ import (
 
 	"github.com/gin-gonic/gin"
 	"github.com/gin-gonic/gin/binding"
-	"gopkg.in/go-playground/validator.v10"
+	"github.com/go-playground/validator/v10"
 )
 
 // Booking contains binded and validated data.
 type Booking struct {
-	CheckIn  time.Time `form:"check_in" binding:"required" time_format:"2006-01-02"`
+	CheckIn  time.Time `form:"check_in" binding:"required,bookabledate" time_format:"2006-01-02"`
 	CheckOut time.Time `form:"check_out" binding:"required,gtfield=CheckIn" time_format:"2006-01-02"`
 }