diff --git a/lib/iris/analysis/_interpolate_backdoor.py b/lib/iris/analysis/_interpolate_backdoor.py
index 1e744e0600..70f9f657b9 100644
--- a/lib/iris/analysis/_interpolate_backdoor.py
+++ b/lib/iris/analysis/_interpolate_backdoor.py
@@ -1,4 +1,4 @@
-# (C) British Crown Copyright 2010 - 2016, Met Office
+# (C) British Crown Copyright 2010 - 2017, Met Office
 #
 # This file is part of Iris.
 #
diff --git a/lib/iris/analysis/interpolate.py b/lib/iris/analysis/interpolate.py
index 067c83da9d..b10cf609b5 100644
--- a/lib/iris/analysis/interpolate.py
+++ b/lib/iris/analysis/interpolate.py
@@ -1,4 +1,4 @@
-# (C) British Crown Copyright 2010 - 2016, Met Office
+# (C) British Crown Copyright 2010 - 2017, Met Office
 #
 # This file is part of Iris.
 #