diff --git a/okta_jwt_verifier/config_validator.py b/okta_jwt_verifier/config_validator.py
index 6073a53..f02e281 100644
--- a/okta_jwt_verifier/config_validator.py
+++ b/okta_jwt_verifier/config_validator.py
@@ -1,3 +1,19 @@
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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 .constants import ADMIN_DOMAINS
 from .error_messages import (ERROR_MESSAGE_ORG_URL_MISSING,
                              ERROR_MESSAGE_ORG_URL_NOT_HTTPS,
diff --git a/okta_jwt_verifier/constants.py b/okta_jwt_verifier/constants.py
index 1b0e86e..268e050 100644
--- a/okta_jwt_verifier/constants.py
+++ b/okta_jwt_verifier/constants.py
@@ -1,3 +1,19 @@
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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 os
 
 
diff --git a/okta_jwt_verifier/error_messages.py b/okta_jwt_verifier/error_messages.py
index bd539dc..72c0d4d 100644
--- a/okta_jwt_verifier/error_messages.py
+++ b/okta_jwt_verifier/error_messages.py
@@ -1,3 +1,19 @@
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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 .constants import FINDING_OKTA_APP_CRED, FINDING_OKTA_DOMAIN
 
 ERROR_MESSAGE_ORG_URL_WRONG_TYPE = ("Your Okta URL should be type of str.")
diff --git a/okta_jwt_verifier/exceptions.py b/okta_jwt_verifier/exceptions.py
index 78ce12a..bac3571 100644
--- a/okta_jwt_verifier/exceptions.py
+++ b/okta_jwt_verifier/exceptions.py
@@ -1,3 +1,20 @@
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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.
+"""
+
+
 class OktaJWTBaseException(Exception):
     pass
 
diff --git a/okta_jwt_verifier/jwt_utils.py b/okta_jwt_verifier/jwt_utils.py
index af187ed..789fa9d 100644
--- a/okta_jwt_verifier/jwt_utils.py
+++ b/okta_jwt_verifier/jwt_utils.py
@@ -1,3 +1,19 @@
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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 json
 
 from jose import jwt, jws
diff --git a/okta_jwt_verifier/jwt_verifier.py b/okta_jwt_verifier/jwt_verifier.py
index d5b36aa..4bbacd7 100644
--- a/okta_jwt_verifier/jwt_verifier.py
+++ b/okta_jwt_verifier/jwt_verifier.py
@@ -1,3 +1,19 @@
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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 warnings
 
 from urllib.parse import urljoin
diff --git a/okta_jwt_verifier/request_executor.py b/okta_jwt_verifier/request_executor.py
index c5f021a..d76ee35 100644
--- a/okta_jwt_verifier/request_executor.py
+++ b/okta_jwt_verifier/request_executor.py
@@ -1,4 +1,19 @@
-"""Module contains tools to perform http requests."""
+"""
+Copyright 2021 - Present Okta, Inc.
+
+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 time
 
 from acachecontrol import AsyncCacheControl