diff --git a/src/main/java/roomescape/payment/infrastructure/client/PaymentProperties.java b/src/main/java/roomescape/payment/infrastructure/client/PaymentProperties.kt
similarity index 100%
rename from src/main/java/roomescape/payment/infrastructure/client/PaymentProperties.java
rename to src/main/java/roomescape/payment/infrastructure/client/PaymentProperties.kt