diff --git a/manifest.json b/manifest.json
index 83261ae..6763edd 100644
--- a/manifest.json
+++ b/manifest.json
@@ -7,7 +7,7 @@
         "fr": "Une alternative open-source et auto-hébergée à Slack"
     },
     "url": "http://www.mattermost.org/",
-    "license": "free",
+    "license": "GPL-3.0-only",
     "version": "4.6.0-1",
     "maintainer": {
         "name": "pmorinerie",