diff --git a/README.md b/README.md
index 814df27..ccd1889 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 [![Releases](https://img.shields.io/github/release/AndanteTribe/ObjectReference.svg)](https://github.com/AndanteTribe/ObjectReference/releases)
 [![GitHub license](https://img.shields.io/github/license/AndanteTribe/ObjectReference.svg)](./LICENSE)
 [![openupm](https://img.shields.io/npm/v/jp.andantetribe.objectreference?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/jp.andantetribe.objectreference/)
+[![CI](https://github.com/AndanteTribe/ObjectReference/actions/workflows/unity-test.yml/badge.svg)](https://github.com/AndanteTribe/ObjectReference/actions/workflows/unity-test.yml)
 
 English | [日本語](README_JA.md)
 
diff --git a/README_JA.md b/README_JA.md
index 2982f8a..39728ae 100644
--- a/README_JA.md
+++ b/README_JA.md
@@ -2,6 +2,7 @@
 [![Releases](https://img.shields.io/github/release/AndanteTribe/ObjectReference.svg)](https://github.com/AndanteTribe/ObjectReference/releases)
 [![GitHub license](https://img.shields.io/github/license/AndanteTribe/ObjectReference.svg)](./LICENSE)
 [![openupm](https://img.shields.io/npm/v/jp.andantetribe.objectreference?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/jp.andantetribe.objectreference/)
+[![CI](https://github.com/AndanteTribe/ObjectReference/actions/workflows/unity-test.yml/badge.svg)](https://github.com/AndanteTribe/ObjectReference/actions/workflows/unity-test.yml)
 
 [English](README.md) | 日本語