diff --git a/metadata/com.ames.books.txt b/metadata/com.ames.books.txt
index 35de567998..164e8d79e1 100644
--- a/metadata/com.ames.books.txt
+++ b/metadata/com.ames.books.txt
@@ -1,6 +1,6 @@
 AntiFeatures:NonFreeNet
 Categories:Science & Education,Reading,Multimedia,Internet
-License:GPL-3.0
+License:GPL-3.0-only
 Web Site:
 Source Code:https://github.com/andviane/google-books-android-viewer
 Issue Tracker:https://github.com/andviane/google-books-android-viewer/issues
diff --git a/metadata/fr.cap_rel.fr.sagc_plongee.fr.nitroxCalc.txt b/metadata/fr.cap_rel.fr.sagc_plongee.fr.nitroxCalc.txt
index f4e2804261..f475a66ca6 100644
--- a/metadata/fr.cap_rel.fr.sagc_plongee.fr.nitroxCalc.txt
+++ b/metadata/fr.cap_rel.fr.sagc_plongee.fr.nitroxCalc.txt
@@ -1,5 +1,5 @@
 Categories:Sports & Health
-License:GPL-3.0
+License:GPL-3.0-only
 Web Site:
 Source Code:https://framagit.org/erics/nitroxCalc
 Issue Tracker:https://framagit.org/erics/nitroxCalc/issues
diff --git a/metadata/org.lenchan139.ncbookmark.txt b/metadata/org.lenchan139.ncbookmark.txt
index 792eb57f1a..ca68dd0021 100644
--- a/metadata/org.lenchan139.ncbookmark.txt
+++ b/metadata/org.lenchan139.ncbookmark.txt
@@ -1,5 +1,5 @@
 Categories:Internet
-License:GPL-3.0
+License:GPL-3.0-only
 Web Site:
 Source Code:https://github.com/lenchan139/NCBookmark
 Issue Tracker:https://github.com/lenchan139/NCBookmark/issues