diff --git a/LICENSE_NOTICE.md b/LICENSE_NOTICE.md
new file mode 100644
index 0000000..96738ca
--- /dev/null
+++ b/LICENSE_NOTICE.md
@@ -0,0 +1,52 @@
+<!--
+Copyright (C) 2020,2021  CismonX <admin@cismon.net>
+
+Copying and distribution of this file, with or without modification, are
+permitted in any medium without royalty, provided the copyright notice and
+this notice are preserved. This file is offered as-is, without any warranty.
+-->
+
+# License Notice
+
+## Other project files
+
+Project files listed below cannot carry a license notice by themselves, due to
+file format restrictions.
+
+```text
+assets/texinfo.png
+language-configuration.json
+package.json
+package-lock.json
+tsconfig.json
+```
+
+They should be treated as if they each contains the following text:
+
+```text
+Copyright (C) 2020,2021  CismonX <admin@cismon.net>
+
+Copying and distribution of this file, with or without modification, are
+permitted in any medium without royalty, provided the copyright notice and
+this notice are preserved. This file is offered as-is, without any warranty.
+```
+
+## Files from other projects
+
+Source code from the projects listed below are **not** part of vscode-texinfo,
+and they are not included in the codebase. However, when building the project,
+they are downloaded, compiled, and packaged into a single binary file alongside
+with vscode-texinfo.
+
+| Project | Copyright Holder | License |
+| -       | -      | -       |
+| [Fast HTML Parser](https://github.com/taoqf/node-html-parser) | Tao Qiufeng | [MIT](https://github.com/taoqf/node-html-parser/blob/main/LICENSE) |
+| [Texinfo syntax highlighting](https://github.com/Alhadis/language-texinfo) | John Gardner | [ISC](https://github.com/Alhadis/language-texinfo/blob/master/LICENSE.md) |
+
+The following projects are required during runtime of vscode-texinfo, but as a
+separate program.
+
+| Project | Copyright Holder | License |
+| -       | -                | -       |
+| [Visual Studio Code](https://github.com/microsoft/vscode) | Microsoft Corporation | [MIT](https://github.com/microsoft/vscode/blob/main/LICENSE.txt) |
+| [GNU Texinfo](https://www.gnu.org/software/texinfo) | Free Software Foundation | [GPL-v3](https://git.savannah.gnu.org/cgit/texinfo.git/tree/COPYING)-or-later |
diff --git a/package.json b/package.json
index 1a17be9..0e5e7ef 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
         "email": "admin@cismon.net",
         "url": "https://cismon.net"
     },
-    "license": "MIT",
+    "license": "GPL-3.0-or-later",
     "repository": {
         "type": "git",
         "url": "https://git.cismon.net/CismonX/vscode-texinfo"