diff --git a/README.md b/README.md
index 5f65edb574..625b4e44f7 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@
 
 <br>
 <div>
-    <img alt="C++" src="https://img.shields.io/badge/c++-17-%2300599C?logo=cplusplus">
+    <img alt="C++" src="https://img.shields.io/badge/c++-20-%2300599C?logo=cplusplus">
 </div>
 <div>
     <img alt="platform" src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-blueviolet">
diff --git a/README_en-US.md b/README_en-US.md
index 6b831fa502..17ecbf9908 100644
--- a/README_en-US.md
+++ b/README_en-US.md
@@ -6,7 +6,7 @@
 
 <br>
 <div>
-    <img alt="C++" src="https://img.shields.io/badge/c++-17-%2300599C?logo=cplusplus">
+    <img alt="C++" src="https://img.shields.io/badge/c++-20-%2300599C?logo=cplusplus">
 </div>
 <div>
     <img alt="platform" src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-blueviolet">
diff --git a/README_ja-JP.md b/README_ja-JP.md
index e66f64d147..ace4db1222 100644
--- a/README_ja-JP.md
+++ b/README_ja-JP.md
@@ -6,7 +6,7 @@
 
 <br>
 <div>
-    <img alt="C++" src="https://img.shields.io/badge/c++-17-%2300599C?logo=cplusplus">
+    <img alt="C++" src="https://img.shields.io/badge/c++-20-%2300599C?logo=cplusplus">
 </div>
 <div>
     <img alt="platform" src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-blueviolet">
diff --git a/README_zh-TW.md b/README_zh-TW.md
index 6b6f572b10..ee0b838e3b 100644
--- a/README_zh-TW.md
+++ b/README_zh-TW.md
@@ -6,7 +6,7 @@
 
 <br>
 <div>
-    <img alt="C++" src="https://img.shields.io/badge/c++-17-%2300599C?logo=cplusplus">
+    <img alt="C++" src="https://img.shields.io/badge/c++-20-%2300599C?logo=cplusplus">
 </div>
 <div>
     <img alt="platform" src="https://img.shields.io/badge/platform-Windows%20%7C%20Linux%20%7C%20macOS-blueviolet">