diff --git a/src/main/kotlin/roomescape/common/config/JacksonConfig.kt b/src/main/kotlin/roomescape/common/config/JacksonConfig.kt
index ce1d335e..d94deb5c 100644
--- a/src/main/kotlin/roomescape/common/config/JacksonConfig.kt
+++ b/src/main/kotlin/roomescape/common/config/JacksonConfig.kt
@@ -30,7 +30,6 @@ class JacksonConfig {
         .registerModule(javaTimeModule())
         .registerModule(dateTimeModule())
         .registerModule(kotlinModule())
-        .registerModule(longIdModule())
         .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
 
     private fun javaTimeModule(): JavaTimeModule = JavaTimeModule()
@@ -51,13 +50,6 @@ class JacksonConfig {
             LocalTimeDeserializer(DateTimeFormatter.ofPattern("HH:mm"))
         ) as JavaTimeModule
 
-    private fun longIdModule(): SimpleModule {
-        val simpleModule = SimpleModule()
-        simpleModule.addSerializer(Long::class.java, LongToStringSerializer())
-        simpleModule.addDeserializer(Long::class.java, StringToLongDeserializer())
-        return simpleModule
-    }
-
     private fun dateTimeModule(): SimpleModule {
         val simpleModule = SimpleModule()
         simpleModule.addSerializer(LocalDateTime::class.java, LocalDateTimeSerializer())