diff --git a/docker/Dockerfile.configpush b/docker/Dockerfile.configpush
index 895e0ee..f096852 100644
--- a/docker/Dockerfile.configpush
+++ b/docker/Dockerfile.configpush
@@ -1,4 +1,18 @@
-FROM alpine:3.5
+# Copyright 2018 the original author or authors.
+#
+# 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
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+FROM alpine:3.6
 
 RUN apk --update add curl