diff --git a/pkg/crypto/sign.go b/pkg/crypto/sign.go
index a0b9cae..90e4c0e 100644
--- a/pkg/crypto/sign.go
+++ b/pkg/crypto/sign.go
@@ -7,7 +7,7 @@ import (
 	"gopkg.in/square/go-jose.v2"
 )
 
-func Sign(object interface{}, signer jose.Signer) (string, error) {
+func Sign(object any, signer jose.Signer) (string, error) {
 	payload, err := json.Marshal(object)
 	if err != nil {
 		return "", err