diff --git a/package.json.in b/package.json.in
index 97057fb..ca3f69f 100644
--- a/package.json.in
+++ b/package.json.in
@@ -13,7 +13,7 @@
   "dependencies": {},
   "devDependencies": {},
 
-  "license": "GPL-3.0",
+  "license": "GPL-3.0+",
 
   "scripts": {
     "test": "make test"