diff --git a/cdc/sink/codec/avro.go b/cdc/sink/codec/avro.go
index 1d6452975ff..7a7b2b3feef 100644
--- a/cdc/sink/codec/avro.go
+++ b/cdc/sink/codec/avro.go
@@ -30,7 +30,6 @@ import (
 	"github.com/pingcap/ticdc/cdc/model"
 	cerror "github.com/pingcap/ticdc/pkg/errors"
 	"github.com/pingcap/tidb/types"
-	tijson "github.com/pingcap/tidb/types/json"
 	"go.uber.org/zap"
 )
 
@@ -474,7 +473,7 @@ func columnToAvroNativeData(col *model.Column, tz *time.Location) (interface{},
 	case mysql.TypeYear:
 		return col.Value.(int64), "long", nil
 	case mysql.TypeJSON:
-		return col.Value.(tijson.BinaryJSON).String(), "string", nil
+		return col.Value.(string), "string", nil
 	case mysql.TypeNewDecimal:
 		return col.Value.(string), "string", nil
 	case mysql.TypeEnum:
diff --git a/cdc/sink/codec/avro_test.go b/cdc/sink/codec/avro_test.go
index 97074664fa8..779be79c451 100644
--- a/cdc/sink/codec/avro_test.go
+++ b/cdc/sink/codec/avro_test.go
@@ -88,6 +88,7 @@ func (s *avroBatchEncoderSuite) TestAvroEncodeOnly(c *check.C) {
 		{Name: "myfloat", Value: float64(3.14), Type: mysql.TypeFloat},
 		{Name: "mybytes", Value: []byte("Hello World"), Type: mysql.TypeBlob},
 		{Name: "ts", Value: time.Now().Format(types.TimeFSPFormat), Type: mysql.TypeTimestamp},
+		{Name: "myjson", Value: "{\"foo\": \"bar\"}", Type: mysql.TypeJSON},
 	}, time.Local)
 	c.Assert(err, check.IsNil)