diff --git a/.github/ISSUE_TEMPLATE/BUG_REPORT.md b/.github/ISSUE_TEMPLATE/BUG_REPORT.md
index 86db820d..9b5a8586 100644
--- a/.github/ISSUE_TEMPLATE/BUG_REPORT.md
+++ b/.github/ISSUE_TEMPLATE/BUG_REPORT.md
@@ -16,7 +16,7 @@ labels: "Status: Unconfirmed"
 <!--
   Write the minimum OpenAPI JSON or YAML Schema needed to reproduce the bug.
   If you can reproduce it with the following Playground, please post the URL too.
-  https://openapi-typescript-playground.netlify.app
+  https://openapi-typescript-code-generator-playground.netlify.app
 -->
 
 ## The current behavior
diff --git a/README.md b/README.md
index e41543f6..0b537579 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Since the parameters extracted from OpenAPI can be used freely, it can be used f
 
 ## Playground
 
-- [Playground](https://openapi-typescript-playground.netlify.app)
+- [Playground](https://openapi-typescript-code-generator-playground.netlify.app)
 
 ## Installation
 
diff --git a/docs/ja/README-ja.md b/docs/ja/README-ja.md
index 7a8f5956..e27798b8 100644
--- a/docs/ja/README-ja.md
+++ b/docs/ja/README-ja.md
@@ -6,7 +6,7 @@ OpenAPI から抽出したパラメーターは自由に使うことができる
 
 ## Playground
 
-- [Playground](https://openapi-typescript-playground.netlify.app)
+- [Playground](https://openapi-typescript-code-generator-playground.netlify.app)
 
 ## DEMO