diff --git a/CHANGELOG.md b/CHANGELOG.md
index 94105a0..836dda2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,18 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+### Fixed
+
+- `apps/playground` was pinned to `@behindthemusictree/genre-tree-view@0.4.0` directly, independent
+  of `packages/app-kit`'s own `0.5.0` dependency, so the playground rendered `0.5.0`'s
+  `GenreTreeWheel`/`GenreTree` markup (new absolutely-positioned pan/zoom stage) styled with
+  `0.4.0`'s CSS (no clipping/positioning rules for it), producing an overlapping, unclipped wheel
+  and tree. Fixed by introducing a pnpm `catalog:` entry in `pnpm-workspace.yaml` for
+  `@behindthemusictree/genre-tree-view`, `@behindthemusictree/ui`, and `@behindthemusictree/brand`,
+  and switching both `packages/app-kit` and `apps/playground` to reference `"catalog:"` instead of
+  hardcoding each version separately — a single source of truth per dependency, so this class of
+  drift can't recur.
+
 ## [1.0.1] - 2026-08-14
 
 ### Changed
diff --git a/apps/playground/package.json b/apps/playground/package.json
index c4fe8fc..6727c56 100644
--- a/apps/playground/package.json
+++ b/apps/playground/package.json
@@ -10,8 +10,8 @@
   },
   "dependencies": {
     "@behindthemusictree/app-kit": "workspace:*",
-    "@behindthemusictree/genre-tree-view": "0.4.0",
-    "@behindthemusictree/ui": "^0.1.0",
+    "@behindthemusictree/genre-tree-view": "catalog:",
+    "@behindthemusictree/ui": "catalog:",
     "@tanstack/react-query": "^5.72.2",
     "react": "^18.2.0",
     "react-dom": "^18.2.0"
diff --git a/packages/app-kit/package.json b/packages/app-kit/package.json
index f22c704..1bb8b74 100644
--- a/packages/app-kit/package.json
+++ b/packages/app-kit/package.json
@@ -61,9 +61,9 @@
     "react-dom": ">=18.0.0"
   },
   "dependencies": {
-    "@behindthemusictree/brand": "12.0.0",
-    "@behindthemusictree/genre-tree-view": "0.5.0",
-    "@behindthemusictree/ui": "^0.1.0",
+    "@behindthemusictree/brand": "catalog:",
+    "@behindthemusictree/genre-tree-view": "catalog:",
+    "@behindthemusictree/ui": "catalog:",
     "clsx": "^2.1.1",
     "lucide-react": "^0.487.0",
     "react-icons": "^5.5.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 4911307..0a58797 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -4,6 +4,18 @@ settings:
   autoInstallPeers: true
   excludeLinksFromLockfile: false
 
+catalogs:
+  default:
+    '@behindthemusictree/brand':
+      specifier: 12.0.0
+      version: 12.0.0
+    '@behindthemusictree/genre-tree-view':
+      specifier: 0.5.0
+      version: 0.5.0
+    '@behindthemusictree/ui':
+      specifier: ^0.1.0
+      version: 0.1.0
+
 importers:
 
   .:
@@ -18,10 +30,10 @@ importers:
         specifier: workspace:*
         version: link:../../packages/app-kit
       '@behindthemusictree/genre-tree-view':
-        specifier: 0.4.0
-        version: 0.4.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
+        specifier: 'catalog:'
+        version: 0.5.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       '@behindthemusictree/ui':
-        specifier: ^0.1.0
+        specifier: 'catalog:'
         version: 0.1.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       '@tanstack/react-query':
         specifier: ^5.72.2
@@ -61,13 +73,13 @@ importers:
   packages/app-kit:
     dependencies:
       '@behindthemusictree/brand':
-        specifier: 12.0.0
+        specifier: 'catalog:'
         version: 12.0.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       '@behindthemusictree/genre-tree-view':
-        specifier: 0.5.0
+        specifier: 'catalog:'
         version: 0.5.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       '@behindthemusictree/ui':
-        specifier: ^0.1.0
+        specifier: 'catalog:'
         version: 0.1.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)
       clsx:
         specifier: ^2.1.1
@@ -252,12 +264,6 @@ packages:
       react: '>=18.0.0'
       react-dom: '>=18.0.0'
 
-  '@behindthemusictree/genre-tree-view@0.4.0':
-    resolution: {integrity: sha512-Hjwq3F35kMhl9LrQhmRuwAsIPmmGXIpv8m4r9M4auU+aZtDDKSx3BNYqZfJGPotiGEH/MZsIHdmAxy50OsUwhg==, tarball: https://npm.pkg.github.com/download/@behindthemusictree/genre-tree-view/0.4.0/d881c1965198cc173b8d24e2879c3da85517acd6}
-    peerDependencies:
-      react: '>=18.0.0'
-      react-dom: '>=18.0.0'
-
   '@behindthemusictree/genre-tree-view@0.5.0':
     resolution: {integrity: sha512-qexIrWvmsTBPAbgSnQJFkpwqrGsRhREeKzhOo8Vj05ZBSJfSro6cog+PjBFj8tUyqvCla6KxS7DMa292Zv8qhQ==, tarball: https://npm.pkg.github.com/download/@behindthemusictree/genre-tree-view/0.5.0/a30f12e4af49b59021612ae10f02846f435c2582}
     peerDependencies:
@@ -2510,13 +2516,6 @@ snapshots:
       react: 18.3.1
       react-dom: 18.3.1(react@18.3.1)
 
-  '@behindthemusictree/genre-tree-view@0.4.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)':
-    dependencies:
-      d3: 7.9.0
-      react: 18.3.1
-      react-dom: 18.3.1(react@18.3.1)
-      react-icons: 5.7.0(react@18.3.1)
-
   '@behindthemusictree/genre-tree-view@0.5.0(react-dom@18.3.1(react@18.3.1))(react@18.3.1)':
     dependencies:
       d3: 7.9.0
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 3a4feb6..0c94ae2 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -2,6 +2,11 @@ packages:
   - "packages/*"
   - "apps/*"
 
+catalog:
+  "@behindthemusictree/brand": 12.0.0
+  "@behindthemusictree/genre-tree-view": 0.5.0
+  "@behindthemusictree/ui": ^0.1.0
+
 allowBuilds:
   esbuild: true
   sharp: false