diff --git a/metadata/com.flipcamera.txt b/metadata/com.flipcamera.txt
index 35a861ddae..790a2d958e 100644
--- a/metadata/com.flipcamera.txt
+++ b/metadata/com.flipcamera.txt
@@ -1,5 +1,5 @@
 Categories:Multimedia
-License:CC0
+License:CC0-1.0
 Web Site:https://bitbucket.org/kingsimmy/frontcamera/overview
 Source Code:https://bitbucket.org/kingsimmy/frontcamera/src
 Issue Tracker:
diff --git a/metadata/de.tum.in.tumcampus.txt b/metadata/de.tum.in.tumcampus.txt
index 6ef2d908e5..8b318f2ca7 100644
--- a/metadata/de.tum.in.tumcampus.txt
+++ b/metadata/de.tum.in.tumcampus.txt
@@ -1,5 +1,5 @@
 Categories:Internet
-License:GPLv3 or New BSD
+License:GPL-3.0,NewBSD
 Web Site:https://apps.wiki.tum.de/TUM+Campus+App
 Source Code:https://github.com/TCA-Team/TumCampusApp
 Issue Tracker:https://github.com/TCA-Team/TumCampusApp/issues
diff --git a/metadata/org.gfd.gsmlocation.txt b/metadata/org.gfd.gsmlocation.txt
index 311fb179de..b632861768 100644
--- a/metadata/org.gfd.gsmlocation.txt
+++ b/metadata/org.gfd.gsmlocation.txt
@@ -1,5 +1,5 @@
 Categories:Navigation
-License:Apache2,CC-BY-SA
+License:Apache2,CC-BY-SA-3.0
 Web Site:
 Source Code:https://github.com/rtreffer/LocalGSMLocationProvider
 Issue Tracker:https://github.com/rtreffer/LocalGSMLocationProvider/issues
diff --git a/metadata/org.ligi.solar_activity_monitor.txt b/metadata/org.ligi.solar_activity_monitor.txt
index f04539dc3e..feef25df23 100644
--- a/metadata/org.ligi.solar_activity_monitor.txt
+++ b/metadata/org.ligi.solar_activity_monitor.txt
@@ -1,6 +1,6 @@
 Disabled:non-free license
 Categories:Navigation
-License:CC-NC-SA
+License:CC-BY-NC-SA-2.0
 Web Site:https://github.com/ligi/Solar-Activity-Monitor/blob/HEAD/README.md
 Source Code:https://github.com/ligi/Solar-Activity-Monitor
 Issue Tracker:https://github.com/ligi/Solar-Activity-Monitor/issues