diff --git a/src/bin/command.ts b/src/bin/command.ts
index 5e77dff5d..0f3763a8e 100644
--- a/src/bin/command.ts
+++ b/src/bin/command.ts
@@ -1,6 +1,6 @@
 #!/usr/bin/env node
 
-// Copyright 2019 Google LLC
+// Copyright 2020 Google LLC
 //
 // 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/bin/release-please.ts b/src/bin/release-please.ts
index 329a3bd83..ca7539bbd 100644
--- a/src/bin/release-please.ts
+++ b/src/bin/release-please.ts
@@ -1,3 +1,17 @@
+// Copyright 2019 Google LLC
+//
+// 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.
+
 import command, {ErrorObject, handleError} from './command';
 
 const argv = command.parse();
diff --git a/test/cli.ts b/test/cli.ts
index 3e4a52396..c5c9e7662 100644
--- a/test/cli.ts
+++ b/test/cli.ts
@@ -1,3 +1,17 @@
+// Copyright 2020 Google LLC
+//
+// 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.
+
 import {resolve} from 'path';
 
 import {describe, it} from 'mocha';
diff --git a/test/runner.ts b/test/runner.ts
index f56eb3926..fcacc4cb6 100644
--- a/test/runner.ts
+++ b/test/runner.ts
@@ -1,3 +1,17 @@
+// Copyright 2020 Google LLC
+//
+// 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.
+
 import {resolve} from 'path';
 import {readFileSync} from 'fs';