diff --git a/src/main/kotlin/roomescape/payment/infrastructure/client/PaymentCancelResponseDeserializer.kt b/src/main/kotlin/roomescape/payment/infrastructure/client/PaymentCancelResponseDeserializer.kt
index 4ffb1e93..01f7930a 100644
--- a/src/main/kotlin/roomescape/payment/infrastructure/client/PaymentCancelResponseDeserializer.kt
+++ b/src/main/kotlin/roomescape/payment/infrastructure/client/PaymentCancelResponseDeserializer.kt
@@ -6,13 +6,11 @@ import com.fasterxml.jackson.databind.DeserializationContext
 import com.fasterxml.jackson.databind.JsonNode
 import com.fasterxml.jackson.databind.deser.std.StdDeserializer
 import roomescape.payment.web.PaymentCancelResponse
-import java.io.IOException
 import java.time.OffsetDateTime
 
 class PaymentCancelResponseDeserializer(
         vc: Class<PaymentCancelResponse>? = null
 ) : StdDeserializer<PaymentCancelResponse>(vc) {
-    @Throws(IOException::class)
     override fun deserialize(
             jsonParser: JsonParser,
             deserializationContext: DeserializationContext?
diff --git a/src/main/kotlin/roomescape/payment/infrastructure/client/TossPaymentClient.kt b/src/main/kotlin/roomescape/payment/infrastructure/client/TossPaymentClient.kt
index e8ff0abe..5fa16a83 100644
--- a/src/main/kotlin/roomescape/payment/infrastructure/client/TossPaymentClient.kt
+++ b/src/main/kotlin/roomescape/payment/infrastructure/client/TossPaymentClient.kt
@@ -77,7 +77,6 @@ class TossPaymentClient(
         }
     }
 
-    @Throws(IOException::class)
     private fun handlePaymentError(
             res: ClientHttpResponse
     ): Nothing {
@@ -92,7 +91,6 @@ class TossPaymentClient(
         )
     }
 
-    @Throws(IOException::class)
     private fun getErrorResponse(
             res: ClientHttpResponse
     ): TossPaymentErrorResponse {