diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerCollisionDetector.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerCollisionDetector.java
index 7697e6a..1e2d225 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerCollisionDetector.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerCollisionDetector.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorLocation.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorLocation.java
index ee47115..1c29fa6 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorLocation.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorLocation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorMessageConstruction.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorMessageConstruction.java
index 538cb0e..7064e3b 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorMessageConstruction.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorMessageConstruction.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorType.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorType.java
index 32620d5..6b520d9 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorType.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerErrorType.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java
index 7b297f2..fd81898 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerUtil.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerValidation.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerValidation.java
index 9790c31..26d3088 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerValidation.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ListenerValidation.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java
index 71f99fe..89afb78 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/ParseTreeErrorListener.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
diff --git a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/package-info.java b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/package-info.java
index b2127e9..9eafb00 100644
--- a/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/package-info.java
+++ b/src/main/java/org/onosproject/yangutils/parser/impl/parserutils/package-info.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2016 Open Networking Laboratory
+ * Copyright 2016-present Open Networking Laboratory
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.