diff --git a/library.json b/library.json
index f573412..b96e3b1 100644
--- a/library.json
+++ b/library.json
@@ -1,6 +1,6 @@
 {
   "name": "WioCellular",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "repository": {
     "type": "git",
     "url": "https://github.com/SeeedJP/wio_cellular.git"
diff --git a/library.properties b/library.properties
index 85ede5d..f5dadfe 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=WioCellular
-version=0.2.1
+version=0.3.0
 author=Seeed K.K.
 maintainer=MATSUOKA Takashi <matsujirushi@live.jp>
 sentence=This library to operate the Wio BG770A cellular module.