diff --git a/unstable/wlr-foreign-toplevel-management-unstable-v1.xml b/unstable/wlr-foreign-toplevel-management-unstable-v1.xml
index 44505bb..a7a9ea9 100644
--- a/unstable/wlr-foreign-toplevel-management-unstable-v1.xml
+++ b/unstable/wlr-foreign-toplevel-management-unstable-v1.xml
@@ -25,7 +25,7 @@
     THIS SOFTWARE.
   </copyright>
 
-  <interface name="zwlr_foreign_toplevel_manager_v1" version="3">
+  <interface name="zwlr_foreign_toplevel_manager_v1" version="4">
     <description summary="list and control opened apps">
       The purpose of this protocol is to enable the creation of taskbars
       and docks by providing them with a list of opened applications and
@@ -68,7 +68,7 @@
     </event>
   </interface>
 
-  <interface name="zwlr_foreign_toplevel_handle_v1" version="3">
+  <interface name="zwlr_foreign_toplevel_handle_v1" version="4">
     <description summary="an opened toplevel">
       A zwlr_foreign_toplevel_handle_v1 object represents an opened toplevel
       window. Each app may have multiple opened toplevels.
@@ -150,10 +150,12 @@
         as the states with the same names defined in xdg-toplevel
       </description>
 
-      <entry name="maximized"  value="0" summary="the toplevel is maximized"/>
-      <entry name="minimized"  value="1" summary="the toplevel is minimized"/>
-      <entry name="activated"  value="2" summary="the toplevel is active"/>
-      <entry name="fullscreen" value="3" summary="the toplevel is fullscreen" since="2"/>
+      <entry name="maximized"    value="0" summary="the toplevel is maximized"/>
+      <entry name="minimized"    value="1" summary="the toplevel is minimized"/>
+      <entry name="activated"    value="2" summary="the toplevel is active"/>
+      <entry name="fullscreen"   value="3" summary="the toplevel is fullscreen" since="2"/>
+      <entry name="unresponsive" value="4" summary="the compositor deems the toplevel unreponsive" since="4"/>
+
     </enum>
 
     <event name="state">