diff --git a/library.json b/library.json
index 249649b..e5d2ed0 100644
--- a/library.json
+++ b/library.json
@@ -11,7 +11,7 @@
         "url": "https://github.com/hideakitai",
         "maintainer": true
     },
-    "version": "0.2.0",
+    "version": "0.2.1",
     "license": "MIT",
     "frameworks": "*",
     "platforms": "*"
diff --git a/library.properties b/library.properties
index c5ca45c..2dc645e 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=ArtNet
-version=0.2.0
+version=0.2.1
 author=hideakitai
 maintainer=hideakitai
 sentence=Art-Net Sender/Receiver for Arduino (Ethernet, WiFi)