diff --git a/system_files/shared/usr/share/ublue-os/homebrew/artwork.Brewfile b/system_files/shared/usr/share/ublue-os/homebrew/artwork.Brewfile
index 156c90ae7..2030f1780 100644
--- a/system_files/shared/usr/share/ublue-os/homebrew/artwork.Brewfile
+++ b/system_files/shared/usr/share/ublue-os/homebrew/artwork.Brewfile
@@ -1,6 +1,5 @@
 tap "ublue-os/tap", trusted: true
 
-cask "ublue-os/tap/aurora-wallpapers"
 cask "ublue-os/tap/bazzite-wallpapers"
 cask "ublue-os/tap/bluefin-wallpapers"
 cask "ublue-os/tap/bluefin-wallpapers-extra"
diff --git a/system_files/shared/usr/share/ublue-os/homebrew/cncf.Brewfile b/system_files/shared/usr/share/ublue-os/homebrew/cncf.Brewfile
index d0758e86a..1e0bc8635 100644
--- a/system_files/shared/usr/share/ublue-os/homebrew/cncf.Brewfile
+++ b/system_files/shared/usr/share/ublue-os/homebrew/cncf.Brewfile
@@ -15,11 +15,10 @@ tap "kitops-ml/kitops"
 tap "microcks/tap"
 tap "telepresenceio/telepresence"
 tap "k0sproject/tap"
-tap "kptdev/kpt", "https://github.com/kptdev/kpt.git"
 tap "wasmcloud/wasmcloud"
 tap "artifacthub/cmd"
 # tap "pingcap/brew"
-tap "kcl-lang/tap", trusted: true
+# tap "kcl-lang/tap", trusted: true
 
 # === GRADUATED PROJECTS ===
 
@@ -226,7 +225,9 @@ brew "devspace"
 brew "k8sgpt"
 
 # KCL
-brew "kcl-lang/tap/kcl"
+# Disabled 2026-09-16: upstream GoReleaser emitted duplicate kcl@0.9.rb / kcl-lsp@0.9.rb
+# with wrong class (KclAT090). Re-enable once upstream deletes them.
+# brew "kcl-lang/tap/kcl"
 
 # KitOps
 brew "kitops-ml/kitops/kitops"
@@ -279,7 +280,7 @@ brew "k3d"
 brew "ko"
 
 # kpt
-brew "kptdev/kpt/kpt"
+brew "kpt"
 
 # kube-vip
 # brew "kube-vip" # In-cluster deployment
diff --git a/tests/test_validate_brewfiles.bats b/tests/test_validate_brewfiles.bats
index 4ae0c6472..739be2df8 100644
--- a/tests/test_validate_brewfiles.bats
+++ b/tests/test_validate_brewfiles.bats
@@ -173,7 +173,7 @@ teardown() {
 @test "repository artwork and Zed use the intended unambiguous cask names" {
     local shared="${ROOT}/system_files/shared/usr/share/ublue-os/homebrew"
     local name
-    for name in aurora-wallpapers bazzite-wallpapers bluefin-wallpapers bluefin-wallpapers-extra framework-wallpapers; do
+    for name in bazzite-wallpapers bluefin-wallpapers bluefin-wallpapers-extra framework-wallpapers; do
         grep -qFx "cask \"ublue-os/tap/${name}\"" "${shared}/artwork.Brewfile"
     done
     grep -qFx 'cask "ublue-os/tap/zed-linux"' "${shared}/experimental-ide.Brewfile"