diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 32302e48..8912e9b5 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,3 +1,17 @@
+# Copyright 2021 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.
+#
 # See https://pre-commit.com for more information
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
diff --git a/docs/conf.py b/docs/conf.py
index 3b2d6de5..9ec04520 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,4 +1,17 @@
 # -*- coding: utf-8 -*-
+# Copyright 2021 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.
 #
 # google-api-core documentation build configuration file
 #
diff --git a/synth.metadata b/synth.metadata
index a51aef98..c66286d1 100644
--- a/synth.metadata
+++ b/synth.metadata
@@ -4,14 +4,14 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-api-core.git",
-        "sha": "9eaa7868164a7e98792de24d2be97f79fba22322"
+        "sha": "49c6755a21215bbb457b60db91bab098185b77da"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "f5c5904fb0c6aa3b3730eadf4e5a4485afc65726"
+        "sha": "5b5bf6d519b2d658d9f2e483d9f6f3d0ba8ee6bc"
       }
     }
   ],