diff --git a/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializers.kt b/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jackson/jsonserialize/CarSerializers.kt
similarity index 93%
rename from 놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializers.kt
rename to 놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jackson/jsonserialize/CarSerializers.kt
index 05ecf2b..ed6b33f 100644
--- a/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializers.kt	
+++ b/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jackson/jsonserialize/CarSerializers.kt	
@@ -1,5 +1,6 @@
-package com.banjjoknim.playground.jsonserialize
+package com.banjjoknim.playground.jackson.jsonserialize
 
+import com.banjjoknim.playground.model.Car
 import com.fasterxml.jackson.core.JsonGenerator
 import com.fasterxml.jackson.databind.SerializerProvider
 import com.fasterxml.jackson.databind.ser.std.StdSerializer
diff --git a/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jsonserialize/Car.kt b/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/model/Car.kt
similarity index 52%
rename from 놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jsonserialize/Car.kt
rename to 놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/model/Car.kt
index 0aaeb0b..0fb98ca 100644
--- a/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/jsonserialize/Car.kt	
+++ b/놀이터(예제 코드 작성)/jackson/src/main/kotlin/com/banjjoknim/playground/model/Car.kt	
@@ -1,3 +1,3 @@
-package com.banjjoknim.playground.jsonserialize
+package com.banjjoknim.playground.model
 
 data class Car(val name: String, val price: Int = 0)
diff --git a/놀이터(예제 코드 작성)/jackson/src/test/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializerTest.kt b/놀이터(예제 코드 작성)/jackson/src/test/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializerTest.kt
index a430f08..f6ca284 100644
--- a/놀이터(예제 코드 작성)/jackson/src/test/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializerTest.kt	
+++ b/놀이터(예제 코드 작성)/jackson/src/test/kotlin/com/banjjoknim/playground/jsonserialize/CarSerializerTest.kt	
@@ -1,5 +1,9 @@
 package com.banjjoknim.playground.jsonserialize
 
+import com.banjjoknim.playground.jackson.jsonserialize.CarNameSerializer
+import com.banjjoknim.playground.jackson.jsonserialize.CarPriceSerializer
+import com.banjjoknim.playground.jackson.jsonserialize.CarSerializer
+import com.banjjoknim.playground.model.Car
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.fasterxml.jackson.databind.module.SimpleModule
 import com.fasterxml.jackson.module.kotlin.registerKotlinModule