diff --git a/app/src/main/java/com/hippo/yorozuya/AssertUtils.java b/app/src/main/java/com/hippo/yorozuya/AssertUtils.kt
similarity index 100%
rename from app/src/main/java/com/hippo/yorozuya/AssertUtils.java
rename to app/src/main/java/com/hippo/yorozuya/AssertUtils.kt