diff --git a/build-constraints.yaml b/build-constraints.yaml
index ef4c5ba9..fea35ffa 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2446,6 +2446,7 @@ packages:
         - streamproc
         - stringsearch          # for cgi
         - titlecase
+        - X11
         - xmonad
 
     "Mark Fine <mark.fine@gmail.com> @markfine":
@@ -4012,7 +4013,6 @@ packages:
         - ParsecTools
         - QuickCheck
         - RSA
-        - X11
         - aeson-compat
         - aeson-extra
         - alsa-mixer
@@ -5996,7 +5996,6 @@ packages:
 
         # Some more failures
         - present < 0 # MonadFail
-        - X11 < 0 # Cabal 3?
         - HSet < 0 # Duplicate Hashable instance
         - data-diverse-lens < 0 # "The liberal coverage condition fails"
         - xmlbf < 0 # MonadFail
@@ -6028,7 +6027,6 @@ packages:
         - Imlib < 0 # via X11
         - X11-xft < 0 # via X11
         - x11-xim < 0 # via X11
-        - xmonad < 0 # via X11
         - xmonad-contrib < 0 # via X11
         - groundhog-postgresql < 0 # via groundhog
         - groundhog-th < 0 # via groundhog