diff --git a/README.md b/README.md
index 754248e..dd308e9 100644
--- a/README.md
+++ b/README.md
@@ -497,7 +497,8 @@ The following parameters are used to create an APN message:
     mutableContent: data.mutableContent || 0,
     threadId: data.threadId,
     pushType: data.pushType,
-    rawPayload: data.rawPayload
+    rawPayload: data.rawPayload,
+    interruptionLevel: data.interruptionLevel
 }
 ```
 
diff --git a/src/utils/tools.js b/src/utils/tools.js
index 57b0de4..6ec8968 100644
--- a/src/utils/tools.js
+++ b/src/utils/tools.js
@@ -169,6 +169,7 @@ const buildApnsMessage = (data) => {
     mutableContent: data.mutableContent || 0,
     threadId: data.threadId,
     pushType: data.pushType,
+    interruptionLevel: data.interruptionLevel,
   });
 
   if (data.rawPayload) {