diff --git a/src/trove_classifiers/__init__.py b/src/trove_classifiers/__init__.py
index 1664704..124924b 100644
--- a/src/trove_classifiers/__init__.py
+++ b/src/trove_classifiers/__init__.py
@@ -312,6 +312,7 @@
     "License :: OSI Approved :: Mozilla Public License 1.1 (MPL 1.1)",
     "License :: OSI Approved :: Mozilla Public License 2.0 (MPL 2.0)",
     "License :: OSI Approved :: Mulan Permissive Software License v2 (MulanPSL-2.0)",
+    "License :: OSI Approved :: NASA Open Source Agreement v1.3 (NASA-1.3)",
     "License :: OSI Approved :: Nethack General Public License",
     "License :: OSI Approved :: Nokia Open Source License",
     "License :: OSI Approved :: Open Group Test Suite License",