diff --git a/LICENSE b/LICENSE
index 4151dbe4..670b668a 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2019 Microsoft Corporation, Daan Leijen
+Copyright (c) 2018-2021 Microsoft Corporation, Daan Leijen
 
 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/doc/mimalloc-doc.h b/doc/mimalloc-doc.h
index 59113402..b448f14a 100644
--- a/doc/mimalloc-doc.h
+++ b/doc/mimalloc-doc.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/include/mimalloc-atomic.h b/include/mimalloc-atomic.h
index db885319..d82bcfce 100644
--- a/include/mimalloc-atomic.h
+++ b/include/mimalloc-atomic.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018,2020 Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021 Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/include/mimalloc-internal.h b/include/mimalloc-internal.h
index d8e293b4..449893b7 100644
--- a/include/mimalloc-internal.h
+++ b/include/mimalloc-internal.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/include/mimalloc-new-delete.h b/include/mimalloc-new-delete.h
index fded0c04..ba208f05 100644
--- a/include/mimalloc-new-delete.h
+++ b/include/mimalloc-new-delete.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018,2019 Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020 Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/include/mimalloc-override.h b/include/mimalloc-override.h
index 2362bfbc..7d9f3e7d 100644
--- a/include/mimalloc-override.h
+++ b/include/mimalloc-override.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018,2019 Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020 Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/include/mimalloc-types.h b/include/mimalloc-types.h
index ddb0511d..18f1623c 100644
--- a/include/mimalloc-types.h
+++ b/include/mimalloc-types.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/include/mimalloc.h b/include/mimalloc.h
index a7849f86..fe5aa8f3 100644
--- a/include/mimalloc.h
+++ b/include/mimalloc.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/alloc-aligned.c b/src/alloc-aligned.c
index 4be651d4..724c0a1b 100644
--- a/src/alloc-aligned.c
+++ b/src/alloc-aligned.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/alloc-override-osx.c b/src/alloc-override-osx.c
index 4b77f631..3a46ecd9 100644
--- a/src/alloc-override-osx.c
+++ b/src/alloc-override-osx.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
@@ -278,4 +278,4 @@ static void __attribute__((constructor(0))) _mi_macos_override_malloc() {
 
 }
 
-#endif // MI_MALLOC_OVERRIDE
\ No newline at end of file
+#endif // MI_MALLOC_OVERRIDE
diff --git a/src/alloc-override.c b/src/alloc-override.c
index b4a661b8..5ceab651 100644
--- a/src/alloc-override.c
+++ b/src/alloc-override.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/alloc-posix.c b/src/alloc-posix.c
index eef70ab5..43931e56 100644
--- a/src/alloc-posix.c
+++ b/src/alloc-posix.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018,2019, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/alloc.c b/src/alloc.c
index 7fcd6a49..25cc04ef 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/arena.c b/src/arena.c
index f697622f..0e6615a4 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2019, Microsoft Research, Daan Leijen
+Copyright (c) 2019-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/bitmap.c b/src/bitmap.c
index 75da19df..3b5c8199 100644
--- a/src/bitmap.c
+++ b/src/bitmap.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2019,2020 Microsoft Research, Daan Leijen
+Copyright (c) 2019-2021 Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/bitmap.h b/src/bitmap.h
index f7819803..21fd4e13 100644
--- a/src/bitmap.h
+++ b/src/bitmap.h
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2019,2020 Microsoft Research, Daan Leijen
+Copyright (c) 2019-2020 Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/heap.c b/src/heap.c
index 275af755..bda10699 100644
--- a/src/heap.c
+++ b/src/heap.c
@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/init.c b/src/init.c
index df5efd03..c0f09b5e 100644
--- a/src/init.c
+++ b/src/init.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/options.c b/src/options.c
index 14df8fba..30025db2 100644
--- a/src/options.c
+++ b/src/options.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/os.c b/src/os.c
index 18105596..814622fc 100644
--- a/src/os.c
+++ b/src/os.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/page-queue.c b/src/page-queue.c
index 57e3d6a5..365257e7 100644
--- a/src/page-queue.c
+++ b/src/page-queue.c
@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/page.c b/src/page.c
index 4b7e9ffb..c08be9c0 100644
--- a/src/page.c
+++ b/src/page.c
@@ -1,5 +1,5 @@
 /*----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/random.c b/src/random.c
index 113ba0fd..255bede4 100644
--- a/src/random.c
+++ b/src/random.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2019, Microsoft Research, Daan Leijen
+Copyright (c) 2019-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/region.c b/src/region.c
index 663859c8..79540730 100644
--- a/src/region.c
+++ b/src/region.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2019, Microsoft Research, Daan Leijen
+Copyright (c) 2019-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/segment.c b/src/segment.c
index fb8e0fe1..1d59be9d 100644
--- a/src/segment.c
+++ b/src/segment.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/static.c b/src/static.c
index 346aced1..4b3abc28 100644
--- a/src/static.c
+++ b/src/static.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/src/stats.c b/src/stats.c
index a82eeb8a..c94fbde9 100644
--- a/src/stats.c
+++ b/src/stats.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2021, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/test/test-api.c b/test/test-api.c
index e5827a93..d3344928 100644
--- a/test/test-api.c
+++ b/test/test-api.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018, Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020, Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license. A copy of the license can be found in the file
 "LICENSE" at the root of this distribution.
diff --git a/test/test-stress.c b/test/test-stress.c
index c4247abe..9b64d243 100644
--- a/test/test-stress.c
+++ b/test/test-stress.c
@@ -1,5 +1,5 @@
 /* ----------------------------------------------------------------------------
-Copyright (c) 2018,2019 Microsoft Research, Daan Leijen
+Copyright (c) 2018-2020 Microsoft Research, Daan Leijen
 This is free software; you can redistribute it and/or modify it under the
 terms of the MIT license.
 -----------------------------------------------------------------------------*/