diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 722a0f6..abbe1b2 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,8 +13,7 @@ jobs:
 
    - name: Install pnpm 📥
      uses: pnpm/action-setup@v4
-     with:
-      version: latest
+     # Version is read from `packageManager` in package.json for reproducible builds.
 
    - name: Install Node.js 📥
      uses: actions/setup-node@v4
diff --git a/package.json b/package.json
index 2b1e692..b164743 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,7 @@
 	"name": "@meowarex/TidalLuna-Plugins",
 	"description": "A Collection of Plugins for TidalLuna",
 	"type": "module",
+	"packageManager": "pnpm@11.1.2",
 	"scripts": {
 		"watch": "concurrently \"pnpm:build --watch\" pnpm:serve",
 		"build": "rimraf ./dist && tsx esbuild.config.ts",
@@ -18,10 +19,5 @@
 		"rimraf": "^6.0.1",
 		"tsx": "^4.19.4",
 		"typescript": "^5.8.3"
-	},
-	"pnpm": {
-		"onlyBuiltDependencies": [
-			"esbuild"
-		]
 	}
 }
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index 863f105..ea060f4 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -1,5 +1,7 @@
 packages:
  - "plugins/*"
 
-onlyBuiltDependencies:
- - esbuild
+# pnpm 11 renamed `onlyBuiltDependencies` (list) to `allowBuilds` (map of name -> bool).
+# This whitelists postinstall/build scripts non-interactively in CI.
+allowBuilds:
+ esbuild: true