diff --git a/NOTICE b/NOTICE
new file mode 100644
index 0000000..382b6b9
--- /dev/null
+++ b/NOTICE
@@ -0,0 +1,7 @@
+php-tokio - Use any async Rust library from PHP!
+
+Copyright 2023-2024 Daniil Gentili <daniil@daniil.it>
+
+Homepage: https://github.com/danog/php-tokio
+
+
diff --git a/crates/macros/src/lib.rs b/crates/macros/src/lib.rs
index e3151d6..6ec1f5a 100644
--- a/crates/macros/src/lib.rs
+++ b/crates/macros/src/lib.rs
@@ -1,3 +1,17 @@
+// Copyright 2023-2024 Daniil Gentili
+// 
+// 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.
+
 use anyhow::{bail, Result};
 use proc_macro2::Span;
 use proc_macro2::TokenStream;
diff --git a/src/event_loop.rs b/src/event_loop.rs
index 8b42514..a07d5ec 100644
--- a/src/event_loop.rs
+++ b/src/event_loop.rs
@@ -1,3 +1,17 @@
+// Copyright 2023-2024 Daniil Gentili
+// 
+// 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.
+
 use crate::borrow_unchecked::borrow_unchecked;
 use ext_php_rs::{boxed::ZBox, call_user_func, prelude::*, types::ZendHashTable, zend::Function};
 use lazy_static::lazy_static;
diff --git a/src/lib.rs b/src/lib.rs
index a905410..9987afb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,17 @@
+// Copyright 2023-2024 Daniil Gentili
+// 
+// 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.
+
 pub mod borrow_unchecked;
 mod event_loop;