diff --git a/keywords.txt b/keywords.txt
index f538472..7fa1b52 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -40,6 +40,7 @@ unsolicitedResultCode	KEYWORD2
 getResponse	KEYWORD2
 isEcho	KEYWORD2
 setEcho	KEYWORD2
+getProductSerialNumberIdentification	KEYWORD2
 getFlowControl	KEYWORD2
 setFlowControl	KEYWORD2
 setFlowControlStatusDce	KEYWORD2
@@ -57,12 +58,15 @@ getSignalQuality	KEYWORD2
 getClock	KEYWORD2
 getSubscriberNumber	KEYWORD2
 getBatteryStatus	KEYWORD2
+sendServiceData	KEYWORD2
+cancelServiceData	KEYWORD2
 
 getLocationTime	KEYWORD2
 
 getStatus	KEYWORD2
 initialize	KEYWORD2
 setUserAgent	KEYWORD2
+setHeaders	KEYWORD2
 action	KEYWORD2
 readDataReceived	KEYWORD2
 terminate	KEYWORD2
diff --git a/library.json b/library.json
index 97f3b35..04f9032 100644
--- a/library.json
+++ b/library.json
@@ -15,8 +15,8 @@
         "type": "git",
         "url": "https://github.com/Atnic/GSM-library.git"
     },
-    "version": "0.5.4-alpha",
-    "license": "Apache-2.0",
+    "version": "0.5.5-alpha",
+    "license": "MIT",
     "frameworks": ["arduino"],
     "platforms": ["atmelavr"]
 }
diff --git a/library.properties b/library.properties
index dba9bd9..978ea59 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=GSM Library
-version=0.5.4-alpha
+version=0.5.5-alpha
 author=Farid Inawan
 maintainer=Farid Inawan <frdteknikelektro@gmail.com>
 sentence=Library for GSM module