diff --git a/LICENSE b/LICENSE
index de2f651..66f2fa3 100644
--- a/LICENSE
+++ b/LICENSE
@@ -3,7 +3,7 @@ below:
 
 MIT License
 
-Copyright (c) 2019 A. Orlenko
+Copyright (c) 2019-2021 A. Orlenko
 Copyright (c) 2017 rlua
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/ffi/compat53.rs b/src/ffi/compat53.rs
index fb5574d..ecaa21d 100644
--- a/src/ffi/compat53.rs
+++ b/src/ffi/compat53.rs
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to deal
diff --git a/src/ffi/glue/glue.c b/src/ffi/glue/glue.c
index e8c00f2..b739a53 100644
--- a/src/ffi/glue/glue.c
+++ b/src/ffi/glue/glue.c
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019-2020 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 // Copyright (c) 2014 J.C. Moyer
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/ffi/lauxlib.rs b/src/ffi/lauxlib.rs
index 8b72349..b3c0a81 100644
--- a/src/ffi/lauxlib.rs
+++ b/src/ffi/lauxlib.rs
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019-2020 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 // Copyright (c) 2014 J.C. Moyer
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/ffi/lua.rs b/src/ffi/lua.rs
index 7c390e1..c0b76cc 100644
--- a/src/ffi/lua.rs
+++ b/src/ffi/lua.rs
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019-2020 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 // Copyright (c) 2014 J.C. Moyer
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/ffi/luaconf.rs b/src/ffi/luaconf.rs
index 304d591..be67a75 100644
--- a/src/ffi/luaconf.rs
+++ b/src/ffi/luaconf.rs
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019-2020 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 // Copyright (c) 2014 J.C. Moyer
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/ffi/lualib.rs b/src/ffi/lualib.rs
index 865fdb6..806fa03 100644
--- a/src/ffi/lualib.rs
+++ b/src/ffi/lualib.rs
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019-2020 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 // Copyright (c) 2014 J.C. Moyer
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
diff --git a/src/ffi/mod.rs b/src/ffi/mod.rs
index 771dd2f..3157944 100644
--- a/src/ffi/mod.rs
+++ b/src/ffi/mod.rs
@@ -1,6 +1,6 @@
 // The MIT License (MIT)
 //
-// Copyright (c) 2019-2020 A. Orlenko
+// Copyright (c) 2019-2021 A. Orlenko
 // Copyright (c) 2014 J.C. Moyer
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy