src/main/kotlin/roomescape/common/config/JacksonConfig.kt

@@ -26,6 +26,7 @@ class JacksonConfig {
         .registerModule(javaTimeModule())
         .registerModule(kotlinModule())
         .registerModule(longIdModule())
+        .configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false)
 
     private fun javaTimeModule(): JavaTimeModule = JavaTimeModule()
         .addSerializer(

src/main/kotlin/roomescape/payment/infrastructure/client/TossPaymentDTO.kt

@@ -1,6 +1,5 @@
 package roomescape.payment.infrastructure.client
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties
 import java.time.OffsetDateTime
 
 data class TossPaymentErrorResponse(
@@ -15,7 +14,6 @@ data class PaymentApproveRequest(
     val paymentType: String
 )
 
-@JsonIgnoreProperties(ignoreUnknown = true)
 data class PaymentApproveResponse(
     val paymentKey: String,
     val orderId: String,

src/main/kotlin/roomescape/payment/infrastructure/client/v2/TosspaymentCancelDTO.kt

@@ -1,6 +1,5 @@
 package roomescape.payment.infrastructure.client.v2
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties
 import com.fasterxml.jackson.core.JsonParser
 import com.fasterxml.jackson.databind.DeserializationContext
 import com.fasterxml.jackson.databind.JsonDeserializer
@@ -15,7 +14,6 @@ data class PaymentCancelRequestV2(
     val cancelReason: String
 )
 
-@JsonIgnoreProperties(ignoreUnknown = true)
 data class PaymentCancelResponseV2(
     val status: PaymentStatus,
     @JsonDeserialize(using = CancelDetailDeserializer::class)

src/main/kotlin/roomescape/payment/infrastructure/client/v2/TosspaymentConfirmDTO.kt

@@ -1,6 +1,5 @@
 package roomescape.payment.infrastructure.client.v2
 
-import com.fasterxml.jackson.annotation.JsonIgnoreProperties
 import roomescape.payment.infrastructure.common.*
 import java.time.OffsetDateTime
 
@@ -8,10 +7,9 @@ data class PaymentConfirmRequest(
     val paymentKey: String,
     val orderId: String,
     val amount: Long,
-    val paymentType: String,
+    val paymentType: PaymentType,
 )
 
-@JsonIgnoreProperties(ignoreUnknown = true)
 data class PaymentConfirmResponse(
     val paymentKey: String,
     val orderId: String,