diff --git a/runtime/src/mimalloc/c/LICENSE b/licenses/third_party/mimalloc_LICENSE.txt
similarity index 100%
rename from runtime/src/mimalloc/c/LICENSE
rename to licenses/third_party/mimalloc_LICENSE.txt
diff --git a/runtime/src/mimalloc/c/alloc-aligned.c b/runtime/src/mimalloc/c/alloc-aligned.c
index 5a59a63ab26..8d502208f43 100644
--- a/runtime/src/mimalloc/c/alloc-aligned.c
+++ b/runtime/src/mimalloc/c/alloc-aligned.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 
 #include "mimalloc.h"
diff --git a/runtime/src/mimalloc/c/alloc-override-osx.c b/runtime/src/mimalloc/c/alloc-override-osx.c
index fef4b929f4e..ba35a4b7951 100644
--- a/runtime/src/mimalloc/c/alloc-override-osx.c
+++ b/runtime/src/mimalloc/c/alloc-override-osx.c
@@ -2,9 +2,12 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
-
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
 #if !KONAN_MI_MALLOC
 #include "mimalloc.h"
 #include "mimalloc-internal.h"
diff --git a/runtime/src/mimalloc/c/alloc-override.c b/runtime/src/mimalloc/c/alloc-override.c
index 3bde565ab35..8a1612d0402 100644
--- a/runtime/src/mimalloc/c/alloc-override.c
+++ b/runtime/src/mimalloc/c/alloc-override.c
@@ -2,8 +2,12 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
 #if !KONAN_MI_MALLOC
 #if !defined(MI_IN_ALLOC_C)
 #error "this file should be included from 'alloc.c' (so aliases can work)"
diff --git a/runtime/src/mimalloc/c/alloc-posix.c b/runtime/src/mimalloc/c/alloc-posix.c
index 505e42e4489..17403772df8 100644
--- a/runtime/src/mimalloc/c/alloc-posix.c
+++ b/runtime/src/mimalloc/c/alloc-posix.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018,2019, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 
 // ------------------------------------------------------------------------
diff --git a/runtime/src/mimalloc/c/alloc.c b/runtime/src/mimalloc/c/alloc.c
index e68b48d2025..ade7d1307aa 100644
--- a/runtime/src/mimalloc/c/alloc.c
+++ b/runtime/src/mimalloc/c/alloc.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #include "mimalloc.h"
 #include "mimalloc-internal.h"
diff --git a/runtime/src/mimalloc/c/heap.c b/runtime/src/mimalloc/c/heap.c
index daa9b241c34..7bae495bf95 100644
--- a/runtime/src/mimalloc/c/heap.c
+++ b/runtime/src/mimalloc/c/heap.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 
 #include "mimalloc.h"
diff --git a/runtime/src/mimalloc/c/include/mimalloc-atomic.h b/runtime/src/mimalloc/c/include/mimalloc-atomic.h
index 56c1320170b..df1d7d4723b 100644
--- a/runtime/src/mimalloc/c/include/mimalloc-atomic.h
+++ b/runtime/src/mimalloc/c/include/mimalloc-atomic.h
@@ -2,8 +2,12 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
 #pragma once
 #ifndef MIMALLOC_ATOMIC_H
 #define MIMALLOC_ATOMIC_H
diff --git a/runtime/src/mimalloc/c/include/mimalloc-internal.h b/runtime/src/mimalloc/c/include/mimalloc-internal.h
index f27589ba5eb..b7ca5d7f70f 100644
--- a/runtime/src/mimalloc/c/include/mimalloc-internal.h
+++ b/runtime/src/mimalloc/c/include/mimalloc-internal.h
@@ -2,8 +2,12 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
 #pragma once
 #ifndef MIMALLOC_INTERNAL_H
 #define MIMALLOC_INTERNAL_H
diff --git a/runtime/src/mimalloc/c/include/mimalloc-new-delete.h b/runtime/src/mimalloc/c/include/mimalloc-new-delete.h
index 050f94334eb..254cd7b4095 100644
--- a/runtime/src/mimalloc/c/include/mimalloc-new-delete.h
+++ b/runtime/src/mimalloc/c/include/mimalloc-new-delete.h
@@ -2,7 +2,7 @@
 Copyright (c) 2018,2019 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #pragma once
 #ifndef MIMALLOC_NEW_DELETE_H
diff --git a/runtime/src/mimalloc/c/include/mimalloc-override.h b/runtime/src/mimalloc/c/include/mimalloc-override.h
index 201fb8b49ba..43a33ed1223 100644
--- a/runtime/src/mimalloc/c/include/mimalloc-override.h
+++ b/runtime/src/mimalloc/c/include/mimalloc-override.h
@@ -2,7 +2,7 @@
 Copyright (c) 2018,2019 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #pragma once
 #ifndef MIMALLOC_OVERRIDE_H
diff --git a/runtime/src/mimalloc/c/include/mimalloc-types.h b/runtime/src/mimalloc/c/include/mimalloc-types.h
index cc8803aaf1a..fb64462a221 100644
--- a/runtime/src/mimalloc/c/include/mimalloc-types.h
+++ b/runtime/src/mimalloc/c/include/mimalloc-types.h
@@ -2,8 +2,12 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
 #pragma once
 #ifndef MIMALLOC_TYPES_H
 #define MIMALLOC_TYPES_H
diff --git a/runtime/src/mimalloc/c/include/mimalloc.h b/runtime/src/mimalloc/c/include/mimalloc.h
index 7f26896c039..3e3a4ff9dde 100644
--- a/runtime/src/mimalloc/c/include/mimalloc.h
+++ b/runtime/src/mimalloc/c/include/mimalloc.h
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #pragma once
 #ifndef MIMALLOC_H
diff --git a/runtime/src/mimalloc/c/init.c b/runtime/src/mimalloc/c/init.c
index 81413aa92ff..3c1eeac8897 100644
--- a/runtime/src/mimalloc/c/init.c
+++ b/runtime/src/mimalloc/c/init.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #include "mimalloc.h"
 #include "mimalloc-internal.h"
diff --git a/runtime/src/mimalloc/c/memory.c b/runtime/src/mimalloc/c/memory.c
index dd03cf9565f..c96424d74c9 100644
--- a/runtime/src/mimalloc/c/memory.c
+++ b/runtime/src/mimalloc/c/memory.c
@@ -2,7 +2,7 @@
 Copyright (c) 2019, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 
 /* ----------------------------------------------------------------------------
diff --git a/runtime/src/mimalloc/c/options.c b/runtime/src/mimalloc/c/options.c
index d6b0558b0f6..abc33226e54 100644
--- a/runtime/src/mimalloc/c/options.c
+++ b/runtime/src/mimalloc/c/options.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #include "mimalloc.h"
 #include "mimalloc-internal.h"
diff --git a/runtime/src/mimalloc/c/os.c b/runtime/src/mimalloc/c/os.c
index 3de6e361544..ea40616aacd 100644
--- a/runtime/src/mimalloc/c/os.c
+++ b/runtime/src/mimalloc/c/os.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #ifndef _DEFAULT_SOURCE
 #define _DEFAULT_SOURCE   // ensure mmap flags are defined
diff --git a/runtime/src/mimalloc/c/page-queue.c b/runtime/src/mimalloc/c/page-queue.c
index 95443a69bb5..2ea0381265e 100644
--- a/runtime/src/mimalloc/c/page-queue.c
+++ b/runtime/src/mimalloc/c/page-queue.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 
 /* -----------------------------------------------------------
diff --git a/runtime/src/mimalloc/c/page.c b/runtime/src/mimalloc/c/page.c
index 437cd0a57a1..757b2461233 100644
--- a/runtime/src/mimalloc/c/page.c
+++ b/runtime/src/mimalloc/c/page.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 
 /* -----------------------------------------------------------
diff --git a/runtime/src/mimalloc/c/segment.c b/runtime/src/mimalloc/c/segment.c
index dcc6a04b398..a8c2cf5e492 100644
--- a/runtime/src/mimalloc/c/segment.c
+++ b/runtime/src/mimalloc/c/segment.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #include "mimalloc.h"
 #include "mimalloc-internal.h"
diff --git a/runtime/src/mimalloc/c/static.c b/runtime/src/mimalloc/c/static.c
index f8aa4c1e88d..1d25b018b77 100644
--- a/runtime/src/mimalloc/c/static.c
+++ b/runtime/src/mimalloc/c/static.c
@@ -2,8 +2,12 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
+/*
+ * Copyright 2010-2020 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the LICENSE file.
+ */
 #if !KONAN_MI_MALLOC
 #define _DEFAULT_SOURCE
 
diff --git a/runtime/src/mimalloc/c/stats.c b/runtime/src/mimalloc/c/stats.c
index 50bd029db0a..451942c1992 100644
--- a/runtime/src/mimalloc/c/stats.c
+++ b/runtime/src/mimalloc/c/stats.c
@@ -2,7 +2,7 @@
 Copyright (c) 2018, 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.
+"licenses/third_party/mimalloc_LICENSE.txt" at the root of this distribution.
 -----------------------------------------------------------------------------*/
 #include "mimalloc.h"
 #include "mimalloc-internal.h"