diff --git a/library.json b/library.json
index d5a62b0..c5e626e 100644
--- a/library.json
+++ b/library.json
@@ -11,7 +11,7 @@
         "url": "https://github.com/hideakitai",
         "maintainer": true
     },
-    "version": "0.3.3",
+    "version": "0.3.4",
     "license": "MIT",
     "frameworks": "arduino",
     "platforms": "*"
diff --git a/library.properties b/library.properties
index 881f57b..3ae21fb 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=MsgPacketizer
-version=0.3.3
+version=0.3.4
 author=hideakitai
 maintainer=hideakitai
 sentence=msgpack based serializer and deserializer with packetize for Arduino and more