diff --git a/compiler/src/function/mut_target.rs b/compiler/src/function/mut_target.rs
index 90d93f04cd..6134c173bc 100644
--- a/compiler/src/function/mut_target.rs
+++ b/compiler/src/function/mut_target.rs
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2020 Aleo Systems Inc.
+// Copyright (C) 2019-2021 Aleo Systems Inc.
 // This file is part of the Leo library.
 
 // The Leo library is free software: you can redistribute it and/or modify
diff --git a/compiler/src/prelude/blake2s.rs b/compiler/src/prelude/blake2s.rs
index 3b11f1cee4..7fb25ba495 100644
--- a/compiler/src/prelude/blake2s.rs
+++ b/compiler/src/prelude/blake2s.rs
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2020 Aleo Systems Inc.
+// Copyright (C) 2019-2021 Aleo Systems Inc.
 // This file is part of the Leo library.
 
 // The Leo library is free software: you can redistribute it and/or modify
diff --git a/compiler/src/prelude/mod.rs b/compiler/src/prelude/mod.rs
index 64f5b45d72..1c924668f8 100644
--- a/compiler/src/prelude/mod.rs
+++ b/compiler/src/prelude/mod.rs
@@ -1,4 +1,4 @@
-// Copyright (C) 2019-2020 Aleo Systems Inc.
+// Copyright (C) 2019-2021 Aleo Systems Inc.
 // This file is part of the Leo library.
 
 // The Leo library is free software: you can redistribute it and/or modify