diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6b6df75..468f2fe 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,20 +2,19 @@ name: ci
 
 on: 
   push: 
-    branches: master
+    branches: 
+      - master
   pull_request:
-    branches: master
+    branches: 
+      - master
   schedule:
     - cron:  '0 0 * * *'
 
 jobs:
   build:
-    name: ${{ matrix.os }}
-    runs-on: ${{ matrix.os }}
+    name: ubuntu-latest
+    runs-on: ubuntu-latest
     timeout-minutes: 60
-    strategy:
-      matrix:
-        os: [macOS-latest, windows-2019, ubuntu-latest]
 
     steps:
       - name: Checkout
diff --git a/README.md b/README.md
index 312f988..03b5c05 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Formatting bytes(Uint8Array、Uint16Array、Uint32Array、ArrayBufferView..) out
 #### code
 
 ```ts
-import { format, setColorEnabled } from "https://deno.land/x/bytes_formater@1.1.0/mod.ts";
+import { format, setColorEnabled } from "https://deno.land/x/bytes_formater@v1.4.0/mod.ts";
 
 const bytes = new Uint8Array([
     10, 53, 46, 54, 46, 51, 52, 0, 71, 241, 0, 59, 77, 99, 52, 49, 65, 107,