diff --git a/optimizely/event_builder.py b/optimizely/event_builder.py
index 4a6113a8..0112b84e 100644
--- a/optimizely/event_builder.py
+++ b/optimizely/event_builder.py
@@ -1,4 +1,4 @@
-# Copyright 2016-2018, Optimizely
+# Copyright 2016-2019, Optimizely
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/optimizely/optimizely.py b/optimizely/optimizely.py
index bb5af780..f27f0ded 100644
--- a/optimizely/optimizely.py
+++ b/optimizely/optimizely.py
@@ -1,4 +1,4 @@
-# Copyright 2016-2018, Optimizely
+# Copyright 2016-2019, Optimizely
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/tests/test_event_builder.py b/tests/test_event_builder.py
index 1bd05cae..f06f7ff3 100644
--- a/tests/test_event_builder.py
+++ b/tests/test_event_builder.py
@@ -1,4 +1,4 @@
-# Copyright 2016-2018, Optimizely
+# Copyright 2016-2019, Optimizely
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
diff --git a/tests/test_optimizely.py b/tests/test_optimizely.py
index ef07cb14..865a2e97 100644
--- a/tests/test_optimizely.py
+++ b/tests/test_optimizely.py
@@ -1,4 +1,4 @@
-# Copyright 2016-2018, Optimizely
+# Copyright 2016-2019, Optimizely
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at