diff --git a/packages/plugin-protocol/package.json b/packages/plugin-protocol/package.json
index 93043fc8a..768855841 100644
--- a/packages/plugin-protocol/package.json
+++ b/packages/plugin-protocol/package.json
@@ -2,6 +2,7 @@
   "name": "@proj-airi/plugin-protocol",
   "type": "module",
   "version": "0.8.5-beta.1",
+  "private": true,
   "description": "Plugin protocol event definitions and shared websocket types for Project AIRI",
   "author": {
     "name": "Moeru AI Project AIRI Team",
diff --git a/packages/plugin-sdk/package.json b/packages/plugin-sdk/package.json
index e730c3325..1793a1eff 100644
--- a/packages/plugin-sdk/package.json
+++ b/packages/plugin-sdk/package.json
@@ -2,6 +2,7 @@
   "name": "@proj-airi/plugin-sdk",
   "type": "module",
   "version": "0.8.5-beta.1",
+  "private": true,
   "description": "Plugin SDK for Project AIRI",
   "author": {
     "name": "Moeru AI Project AIRI Team",
diff --git a/packages/server-shared/package.json b/packages/server-shared/package.json
index e20677cd7..ec5b28bff 100644
--- a/packages/server-shared/package.json
+++ b/packages/server-shared/package.json
@@ -32,7 +32,7 @@
     "build": "tsdown",
     "typecheck": "tsc --noEmit"
   },
-  "dependencies": {
+  "devDependencies": {
     "@proj-airi/plugin-protocol": "workspace:*"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 261f31b39..457d41bbe 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -2083,7 +2083,7 @@ importers:
         version: 0.1.0-beta.14
 
   packages/server-shared:
-    dependencies:
+    devDependencies:
       '@proj-airi/plugin-protocol':
         specifier: workspace:*
         version: link:../plugin-protocol