diff --git a/library.json b/library.json
index e3d093a..2e76df5 100644
--- a/library.json
+++ b/library.json
@@ -11,7 +11,7 @@
         "url": "https://github.com/hideakitai",
         "maintainer": true
     },
-    "version": "0.5.2",
+    "version": "0.5.3",
     "license": "MIT",
     "frameworks": "*",
     "platforms": "*"
diff --git a/library.properties b/library.properties
index 09334d2..e345855 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=Packetizer
-version=0.5.2
+version=0.5.3
 author=hideakitai
 maintainer=hideakitai
 sentence=binary data packetization encoder / decoder based on COBS / SLIP encoding