diff --git a/README.md b/README.md
index c3fe2c37a..af3ebf112 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ The action works on these [GitHub-hosted runners](https://docs.github.com/en/act
 | Operating System | Supported |
 | ---------------- | --------- |
 | Ubuntu  | `ubuntu-20.04`, `ubuntu-22.04`, `ubuntu-24.04` |
-| macOS   | `macos-11`, `macos-12`, `macos-13`, `macos-14` |
+| macOS   | `macos-12`, `macos-13`, `macos-14` |
 | Windows | `windows-2019`, `windows-2022` |
 
 The prebuilt releases are generated by [ruby-builder](https://github.com/ruby/ruby-builder)
diff --git a/common.js b/common.js
index c7b9d5c4f..61d0021d1 100644
--- a/common.js
+++ b/common.js
@@ -166,7 +166,6 @@ const GitHubHostedPlatforms = [
   'ubuntu-20.04-x64',
   'ubuntu-22.04-x64',
   'ubuntu-24.04-x64',
-  'macos-11-x64',
   'macos-12-x64',
   'macos-13-x64',
   'macos-13-arm64',
diff --git a/dist/index.js b/dist/index.js
index 7ed67be4d..a8e3925de 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -526,7 +526,6 @@ const GitHubHostedPlatforms = [
   'ubuntu-20.04-x64',
   'ubuntu-22.04-x64',
   'ubuntu-24.04-x64',
-  'macos-11-x64',
   'macos-12-x64',
   'macos-13-x64',
   'macos-13-arm64',