diff --git a/third-party/fmt/README.rst.license b/third-party/fmt/README.rst.license
new file mode 100644
index 0000000..3755e29
--- /dev/null
+++ b/third-party/fmt/README.rst.license
@@ -0,0 +1,4 @@
+#
+# Copyright (c) 2012 - present, Victor Zverovich
+# SPDX-License-Identifier: MIT
+#
diff --git a/third-party/fmt/core.h b/third-party/fmt/core.h
index 338e0c7..a992418 100644
--- a/third-party/fmt/core.h
+++ b/third-party/fmt/core.h
@@ -2,6 +2,7 @@
 //
 // Copyright (c) 2012 - present, Victor Zverovich
 // All rights reserved.
+// SPDX-License-Identifier: MIT
 //
 // For the license information refer to format.h.
 
diff --git a/third-party/fmt/format-inl.h b/third-party/fmt/format-inl.h
index d3970d4..f4e3392 100644
--- a/third-party/fmt/format-inl.h
+++ b/third-party/fmt/format-inl.h
@@ -2,6 +2,7 @@
 //
 // Copyright (c) 2012 - 2016, Victor Zverovich
 // All rights reserved.
+// SPDX-License-Identifier: MIT
 //
 // For the license information refer to format.h.
 
diff --git a/third-party/fmt/format.h b/third-party/fmt/format.h
index 712c6eb..20ed0bb 100644
--- a/third-party/fmt/format.h
+++ b/third-party/fmt/format.h
@@ -3,6 +3,8 @@
 
  Copyright (c) 2012 - present, Victor Zverovich
 
+ SPDX-License-Identifier: MIT
+
  Permission is hereby granted, free of charge, to any person obtaining
  a copy of this software and associated documentation files (the
  "Software"), to deal in the Software without restriction, including
diff --git a/third-party/fmt/src/format.cc b/third-party/fmt/src/format.cc
index a64a1f3..10af1f5 100644
--- a/third-party/fmt/src/format.cc
+++ b/third-party/fmt/src/format.cc
@@ -2,6 +2,7 @@
 //
 // Copyright (c) 2012 - 2016, Victor Zverovich
 // All rights reserved.
+// SPDX-License-Identifier: MIT
 //
 // For the license information refer to format.h.