diff --git a/MANIFEST.in b/MANIFEST.in
index 9561fb1..bfb51c7 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1 +1,4 @@
 include README.rst
+include LICENSE
+include lz4libs/LICENSE
+include lz4libs/LICENSE.xxhash
diff --git a/docs/license.rst b/docs/license.rst
index 3d599fa..5fdc679 100644
--- a/docs/license.rst
+++ b/docs/license.rst
@@ -2,3 +2,11 @@ Licensing
 =========
 Code specific to this project is covered by the `BSD 3-Clause License
 <http://opensource.org/licenses/BSD-3-Clause>`_
+
+This package bundles the LZ4 and xxHash C libraries (under ``lz4libs/``) when
+they are built from source rather than linked against a system-provided
+``liblz4``. Those libraries are covered by their own `BSD 2-Clause License
+<http://opensource.org/licenses/BSD-2-Clause>`_, copyright Yann Collet. The
+license texts are included alongside the vendored sources in
+``lz4libs/LICENSE`` and ``lz4libs/LICENSE.xxhash``, and are packaged with the
+distributed sdist and wheel.
diff --git a/lz4libs/LICENSE b/lz4libs/LICENSE
new file mode 100644
index 0000000..4884916
--- /dev/null
+++ b/lz4libs/LICENSE
@@ -0,0 +1,24 @@
+LZ4 Library
+Copyright (c) 2011-2020, Yann Collet
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/lz4libs/LICENSE.xxhash b/lz4libs/LICENSE.xxhash
new file mode 100644
index 0000000..e4c5da7
--- /dev/null
+++ b/lz4libs/LICENSE.xxhash
@@ -0,0 +1,26 @@
+xxHash Library
+Copyright (c) 2012-2021 Yann Collet
+All rights reserved.
+
+BSD 2-Clause License (https://www.opensource.org/licenses/bsd-license.php)
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice, this
+  list of conditions and the following disclaimer in the documentation and/or
+  other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/setup.py b/setup.py
index eb9030f..2f82a92 100644
--- a/setup.py
+++ b/setup.py
@@ -183,6 +183,11 @@ def pkgconfig_installed_check(lib, required_version, default):
     author='Jonathan Underwood',
     author_email='jonathan.underwood@gmail.com',
     license='BSD-3-Clause',
+    license_files=[
+        'LICENSE',
+        'lz4libs/LICENSE',
+        'lz4libs/LICENSE.xxhash',
+    ],
     url='https://github.com/python-lz4/python-lz4',
     packages=packages,
     ext_modules=ext_modules,