diff --git a/jwtutil/go.mod b/jwtutil/go.mod
index 041f433..4e22d48 100644
--- a/jwtutil/go.mod
+++ b/jwtutil/go.mod
@@ -5,13 +5,16 @@ go 1.23.0
 toolchain go1.24.1
 
 require (
+	github.com/go-kratos/kratos/v2 v2.8.4
 	github.com/golang-jwt/jwt/v5 v5.1.0
 	github.com/stretchr/testify v1.10.0
 )
 
 require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
diff --git a/jwtutil/go.sum b/jwtutil/go.sum
index 5e73975..2ddfa69 100644
--- a/jwtutil/go.sum
+++ b/jwtutil/go.sum
@@ -1,12 +1,28 @@
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/go-kratos/kratos/v2 v2.8.4 h1:eIJLE9Qq9WSoKx+Buy2uPyrahtF/lPh+Xf4MTpxhmjs=
+github.com/go-kratos/kratos/v2 v2.8.4/go.mod h1:mq62W2101a5uYyRxe+7IdWubu7gZCGYqSNKwGFiiRcw=
 github.com/golang-jwt/jwt/v5 v5.1.0 h1:UGKbA/IPjtS6zLcdB7i5TyACMgSbOTiR8qzXgw8HWQU=
 github.com/golang-jwt/jwt/v5 v5.1.0/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
+github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
+golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
+google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/jwtutil/jwt.go b/jwtutil/jwt.go
index be55e7e..d7c8cd1 100644
--- a/jwtutil/jwt.go
+++ b/jwtutil/jwt.go
@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"time"
 
-	"encoding/json"
+	"github.com/go-kratos/kratos/v2/encoding"
 	"github.com/golang-jwt/jwt/v5"
 )
 
@@ -40,14 +40,16 @@ func ParseJWTClaimsToStruct[T any](tokenString string) (*T, error) {
 		return nil, fmt.Errorf("invalid token claims")
 	}
 
+	codec := encoding.GetCodec("json")
+
 	// 将 claims 转换为目标类型
-	claimsBytes, err := json.Marshal(claims)
+	claimsBytes, err := codec.Marshal(claims)
 	if err != nil {
 		return nil, fmt.Errorf("failed to marshal claims: %v", err)
 	}
 
 	var ret T
-	err = json.Unmarshal(claimsBytes, &ret)
+	err = codec.Unmarshal(claimsBytes, &ret)
 	if err != nil {
 		return nil, fmt.Errorf("failed to unmarshal claims: %v", err)
 	}
@@ -132,13 +134,15 @@ func GenerateGenericJWT[T any](payload T, secretKey []byte, signingMethod jwt.Si
 
 // ToMapClaims 将泛型 payload 转换为 jwt.MapClaims
 func ToMapClaims[T any](payload T) (jwt.MapClaims, error) {
-	payloadBytes, err := json.Marshal(payload)
+	codec := encoding.GetCodec("json")
+
+	payloadBytes, err := codec.Marshal(payload)
 	if err != nil {
 		return nil, err
 	}
 
 	var claims jwt.MapClaims
-	err = json.Unmarshal(payloadBytes, &claims)
+	err = codec.Unmarshal(payloadBytes, &claims)
 	if err != nil {
 		return nil, err
 	}
diff --git a/jwtutil/jwt_test.go b/jwtutil/jwt_test.go
index e33dc36..38bdd7b 100644
--- a/jwtutil/jwt_test.go
+++ b/jwtutil/jwt_test.go
@@ -8,6 +8,9 @@ import (
 
 	"github.com/golang-jwt/jwt/v5"
 	"github.com/stretchr/testify/assert"
+
+	_ "github.com/go-kratos/kratos/v2/encoding/json"
+	_ "github.com/go-kratos/kratos/v2/encoding/proto"
 )
 
 func TestParseJWTPayload(t *testing.T) {
diff --git a/tag.bat b/tag.bat
index 1d0cfe7..e61705a 100644
--- a/tag.bat
+++ b/tag.bat
@@ -4,7 +4,7 @@ git tag bank_card/v1.1.5
 git tag geoip/v1.1.5
 git tag translator/v1.1.2
 git tag copierutil/v0.0.3
-git tag jwtutil/v0.0.1
+git tag jwtutil/v0.0.2
 
 git tag entgo/v1.1.28
 git tag gorm/v1.1.6