diff --git a/lib/version-checker.ts b/lib/version-checker.ts
index 42bfe28..ea28ab9 100644
--- a/lib/version-checker.ts
+++ b/lib/version-checker.ts
@@ -58,21 +58,11 @@ export async function performUpdate(targetVersion: string, logger?: { info: (com
 
     logger?.info("version", "Starting auto-update", { targetVersion, cacheDir })
 
-    try {
-        const { rmSync, existsSync } = await import('fs')
-        const lockFile = join(cacheDir, 'node_modules', '.package-lock.json')
-        if (existsSync(lockFile)) {
-            rmSync(lockFile, { force: true })
-            logger?.info("version", "Removed package-lock.json to force fresh resolution")
-        }
-    } catch (err) {
-        logger?.info("version", "Could not remove lock file", { error: (err as Error).message })
-    }
-
     return new Promise((resolve) => {
         let resolved = false
 
-        const proc = spawn('npm', ['install', '--legacy-peer-deps', packageSpec], {
+        // Use bun since opencode uses bun to manage its plugin dependencies
+        const proc = spawn('bun', ['add', packageSpec], {
             cwd: cacheDir,
             stdio: 'pipe'
         })
diff --git a/package-lock.json b/package-lock.json
index 9954bca..d5f9687 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@tarquinen/opencode-dcp",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@tarquinen/opencode-dcp",
-      "version": "0.4.5",
+      "version": "0.4.6",
       "license": "MIT",
       "dependencies": {
         "@ai-sdk/openai-compatible": "^1.0.28",
diff --git a/package.json b/package.json
index 32ac525..d308c6c 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "@tarquinen/opencode-dcp",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "type": "module",
   "description": "OpenCode plugin that optimizes token usage by pruning obsolete tool outputs from conversation context",
   "main": "./dist/index.js",