diff --git a/fileitemactionplugin/cmake/templates/appdata.xml.in b/fileitemactionplugin/cmake/templates/appdata.xml.in
index 6c29b31..b0cf864 100644
--- a/fileitemactionplugin/cmake/templates/appdata.xml.in
+++ b/fileitemactionplugin/cmake/templates/appdata.xml.in
@@ -9,8 +9,8 @@
   @META_APP_APPDATA_BODY@
   <url type="homepage">@META_APP_URL@</url>
   <url type="bugtracker">@META_APP_BUGTRACKER_URL@</url>
-  <developer_name>@META_APP_AUTHOR@</developer_name>
+  <developer><name>@META_APP_AUTHOR@</name></developer>
   <releases>
     <release version="@META_APP_VERSION@" date="@META_RELEASE_DATE@"/>
   </releases>
-</component>
\ No newline at end of file
+</component>
diff --git a/fileitemactionplugin/resources/body.appdata.xml b/fileitemactionplugin/resources/body.appdata.xml
index a5f60d2..29882d3 100644
--- a/fileitemactionplugin/resources/body.appdata.xml
+++ b/fileitemactionplugin/resources/body.appdata.xml
@@ -7,4 +7,4 @@
     <image>@META_APP_URL_RAW@/fileitemactionplugin/resources/screenshots/dolphin.png</image>
   </screenshot>
 </screenshots>
-<content_rating/>
+<content_rating type="oars-1.0"/>
diff --git a/plasmoid/lib/cmake/templates/appdata.xml.in b/plasmoid/lib/cmake/templates/appdata.xml.in
index 706acd8..cf3e348 100644
--- a/plasmoid/lib/cmake/templates/appdata.xml.in
+++ b/plasmoid/lib/cmake/templates/appdata.xml.in
@@ -9,7 +9,7 @@
   @META_APP_APPDATA_BODY@
   <url type="homepage">@META_APP_URL@</url>
   <url type="bugtracker">@META_APP_BUGTRACKER_URL@</url>
-  <developer_name>@META_APP_AUTHOR@</developer_name>
+  <developer><name>@META_APP_AUTHOR@</name></developer>
   <releases>
     <release version="@META_APP_VERSION@" date="@META_RELEASE_DATE@"/>
   </releases>
diff --git a/plasmoid/lib/resources/body.appdata.xml b/plasmoid/lib/resources/body.appdata.xml
index 6ed8414..7013d68 100644
--- a/plasmoid/lib/resources/body.appdata.xml
+++ b/plasmoid/lib/resources/body.appdata.xml
@@ -27,4 +27,4 @@
     <image>@META_APP_URL_RAW@/tray/resources/screenshots/webview-dark.png</image>
   </screenshot>
 </screenshots>
-<content_rating/>
+<content_rating type="oars-1.0"/>
diff --git a/tray/resources/body.appdata.xml b/tray/resources/body.appdata.xml
index 916cdc3..add6b8c 100644
--- a/tray/resources/body.appdata.xml
+++ b/tray/resources/body.appdata.xml
@@ -23,4 +23,4 @@
     <image>@META_APP_URL_RAW@/tray/resources/screenshots/settings.png</image>
   </screenshot>
 </screenshots>
-<content_rating/>
+<content_rating type="oars-1.0"/>