diff --git a/.npmrc b/.npmrc
new file mode 100644
index 0000000..9cf9495
--- /dev/null
+++ b/.npmrc
@@ -0,0 +1 @@
+package-lock=false
\ No newline at end of file
diff --git a/helpers/Buffer.ts b/helpers/Buffer.ts
index 16cf9e8..90de9ff 100644
--- a/helpers/Buffer.ts
+++ b/helpers/Buffer.ts
@@ -61,7 +61,7 @@ export class Buffer<T> extends EventEmitter {
         });
     }
 
-    public write(object: T): Promise<T | void> {
+    public write(object: T): Promise<T | undefined> {
         if (this.sealed) {
             return Promise.reject(new BufferSealedError());
         }
diff --git a/package-lock.json b/package-lock.json
deleted file mode 100644
index 719ca90..0000000
--- a/package-lock.json
+++ /dev/null
@@ -1,2041 +0,0 @@
-{
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-      "integrity": "sha1-4nzwgXFT658nE7LT9saPHhw8pgg=",
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