diff --git a/LICENSE.md b/LICENSE.md
index dd844411..7c52ce13 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -13,3 +13,5 @@
 
     You should have received a copy of the GNU Affero General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Note that packages under [third-party/](third-party/) have different licenses, and the code in [code/libraries/](code/libraries/) is dual-licensed under MIT.