diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 00000000..5149a95c
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,11 @@
+All code and data in the RustSec advisory database repository is dedicated to
+the public domain:
+
+https://creativecommons.org/publicdomain/zero/1.0/
+
+By committing to this repository, you hereby waive all rights to the work
+worldwide under copyright law, including all related and neighboring rights, to
+the extent allowed by law.
+
+You can copy, modify, distribute, and retransmit any information in this
+repository, even for commercial purposes, without asking permission.
diff --git a/README.md b/README.md
index 3d6b7100..38e85e0d 100644
--- a/README.md
+++ b/README.md
@@ -39,3 +39,7 @@ The flaw was corrected by Z.
 
 [TOML]: https://github.com/toml-lang/toml
 [cargo-audit]: https://github.com/rustsec/cargo-audit
+
+## License
+
+[![Public Domain](http://i.creativecommons.org/p/zero/1.0/88x31.png)](https://github.com/RustSec/advisory-db/blob/master/LICENSE.txt)