diff --git a/deps.pure_ext.ts b/deps.pure_ext.ts
index de609bb..6576fb1 100644
--- a/deps.pure_ext.ts
+++ b/deps.pure_ext.ts
@@ -1,8 +1,8 @@
 // @deno-types="https://deno.land/std@0.221.0/csv/mod.ts"
 export {parse, stringify} from "https://esm.sh/gh/denoland/deno_std@0.221.0/csv/mod.ts?bundle&target=esnext";
-// @deno-types="https://deno.land/x/zipjs@v2.7.40/index.d.ts"
-export {ZipReader, ZipWriter, Uint8ArrayReader, Uint8ArrayWriter} from "https://esm.sh/gh/gildas-lormeau/zip.js@v2.7.40/index.js?bundle&target=esnext";
+// @deno-types="https://deno.land/x/zipjs@v2.7.41/index.d.ts"
+export {ZipReader, ZipWriter, Uint8ArrayReader, Uint8ArrayWriter} from "https://esm.sh/gh/gildas-lormeau/zip.js@v2.7.41/index.js?bundle&target=esnext";
 
-// @deno-types="https://cdn.sheetjs.com/xlsx-0.20.1/package/types/index.d.ts"
-export {type WorkBook as RawWorkBook, type WorkSheet as RawWorkSheet, type CellObject as RawWorkCell, set_cptable, read as xlsxRead, write as xlsxWrite, utils as xlsxUtil} from "https://cdn.sheetjs.com/xlsx-0.20.1/package/xlsx.mjs";
-export * as xlsxcp from "https://cdn.sheetjs.com/xlsx-0.20.1/package/dist/cpexcel.full.mjs";
\ No newline at end of file
+// @deno-types="https://cdn.sheetjs.com/xlsx-0.20.2/package/types/index.d.ts"
+export {type WorkBook as RawWorkBook, type WorkSheet as RawWorkSheet, type CellObject as RawWorkCell, set_cptable, read as xlsxRead, write as xlsxWrite, utils as xlsxUtil} from "https://cdn.sheetjs.com/xlsx-0.20.2/package/xlsx.mjs";
+export * as xlsxcp from "https://cdn.sheetjs.com/xlsx-0.20.2/package/dist/cpexcel.full.mjs";
\ No newline at end of file
diff --git a/src/pure/minipack.ts b/src/pure/minipack.ts
index 634bf1f..7b1d236 100644
--- a/src/pure/minipack.ts
+++ b/src/pure/minipack.ts
@@ -1,7 +1,7 @@
 import {u8Encode, u8Decode} from "./text.ts";
 
-const sizeName = 1;
-const sizeBody = 4;
+const MINIPACK_NAME = 1;
+const MINIPACK_BODY = 4;
 
 /**
 * Simple name and data pair.
@@ -25,17 +25,17 @@ export interface DataMap{
 * ```
 */
 export function minipackEncode(files:DataMap[]):Uint8Array{
-    const archive = new Uint8Array(files.reduce((size, {name, body}) => size + sizeName + sizeBody + u8Encode(name).byteLength + body.byteLength, 0));
+    const archive = new Uint8Array(files.reduce((size, {name, body}) => size + MINIPACK_NAME + MINIPACK_BODY + u8Encode(name).byteLength + body.byteLength, 0));
 
     let i = 0;
     for(const {name, body} of files){
         const u8name = u8Encode(name);
 
         new DataView(archive.buffer, i).setUint8(0, u8name.byteLength);
-        i += sizeName;
+        i += MINIPACK_NAME;
 
         new DataView(archive.buffer, i).setUint32(0, body.byteLength);
-        i += sizeBody;
+        i += MINIPACK_BODY;
 
         archive.set(u8name, i);
         i += u8name.byteLength;
@@ -65,10 +65,10 @@ export function minipackDecode(archive:Uint8Array):DataMap[]{
 
     for(let i = 0; i < archive.byteLength;){
         const ns = new DataView(archive.buffer, i).getUint8(0);
-        i += sizeName;
+        i += MINIPACK_NAME;
 
         const bs = new DataView(archive.buffer, i).getUint32(0);
-        i += sizeBody;
+        i += MINIPACK_BODY;
 
         files.push({
             name: u8Decode(archive.subarray(i, i += ns)),
diff --git a/src/pure/worker.ts b/src/pure/worker.ts
index b19b108..f978f6a 100644
--- a/src/pure/worker.ts
+++ b/src/pure/worker.ts
@@ -3,7 +3,7 @@ import {u8Encode} from "./text.ts";
 
 interface TaskMessage<T extends unknown>{
     message: T;
-    transfers?: (Transferable | ArrayBufferView)[];
+    transfers?: Transferable[];
 }
 
 /**
@@ -14,7 +14,7 @@ export type TaskAction<T extends unknown, K extends unknown> = (message:T) => Ta
 /**
 * Run registered `TaskAction` in worker thread.
 */
-export type TaskContext<T extends unknown, K extends unknown> = (message:T, transfers?:(Transferable | ArrayBufferView)[]) => Promise<K>;
+export type TaskContext<T extends unknown, K extends unknown> = (message:T, transfers?:Transferable[]) => Promise<K>;
 
 /**
 * Register `TaskAction` and return reusable task execution context.
@@ -38,7 +38,7 @@ export function createTask<T extends unknown, K extends unknown>(task:TaskAction
         globalThis.onmessage = async({data})=>{
             const {message, transfers} = await(${task.toString()})(data);
             globalThis.postMessage(message, {
-                transfer: transfers?.map(v => "buffer" in v ? v.buffer : v)
+                transfer: transfers
             });
         };
     `;
@@ -65,7 +65,7 @@ export function createTask<T extends unknown, K extends unknown>(task:TaskAction
             };
 
             worker.postMessage(message, {
-                transfer: transfers?.map(v => "buffer" in v ? v.buffer : v)
+                transfer: transfers
             });
         });
     };
diff --git a/test/pure/worker.test.ts b/test/pure/worker.test.ts
index ffbfb93..3720e42 100644
--- a/test/pure/worker.test.ts
+++ b/test/pure/worker.test.ts
@@ -12,11 +12,11 @@ Deno.test({
 
             return {
                 message: result,
-                transfers: [result]
+                transfers: [result.buffer]
             };
         });
 
-        const result = await task(sample1, [sample1]);
+        const result = await task(sample1, [sample1.buffer]);
 
         assertEquals(result, sample2);
     }