diff --git a/library/src/main/java/hotchemi/android/rate/AppRate.java b/library/src/main/java/hotchemi/android/rate/AppRate.java
index b9a4907..e0f2237 100644
--- a/library/src/main/java/hotchemi/android/rate/AppRate.java
+++ b/library/src/main/java/hotchemi/android/rate/AppRate.java
@@ -53,7 +53,7 @@ public static boolean showRateDialogIfMeetsConditions(Activity activity) {
         return isMeetsConditions;
     }
 
-    private static boolean isOverDate(long targetDate, int threshold) {
+    private static boolean isOverDate(long targetDate, long threshold) {
         return new Date().getTime() - targetDate >= threshold * 24 * 60 * 60 * 1000;
     }