diff --git a/packages/opencode/src/npm/index.ts b/packages/opencode/src/npm/index.ts
index d6182d87a6..12121b005f 100644
--- a/packages/opencode/src/npm/index.ts
+++ b/packages/opencode/src/npm/index.ts
@@ -56,7 +56,7 @@ export namespace Npm {
   }
 
   export async function add(pkg: string) {
-    using _ = await Lock.write("npm-install")
+    using _ = await Lock.write(`npm-install:${pkg}`)
     log.info("installing package", {
       pkg,
     })