diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcec020..b4de0ae 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 All notable changes to this project will be documented in this file.
 
+# [15.5](https://github.com/joseluisq/macosx-sdks/releases/tag/15.5) - Jun 14, 2025
+
+[macOS Sequoia 15.5](https://developer.apple.com/documentation/macos-release-notes/macos-15_5-release-notes) SDK packaged using [osxcross](https://github.com/tpoechtrager/osxcross#packaging-the-sdk).
+
+**SHA256SUM:** `c15cf0f3f17d714d1aa5a642da8e118db53d79429eb015771ba816aa7c6c1cbd`
+
+__Note:__
+
+Please ensure you have read and understood the [Xcode license terms](https://www.apple.com/legal/sla/docs/xcode.pdf) first.
+
+[Changes][15.4]
+
 # [15.4](https://github.com/joseluisq/macosx-sdks/releases/tag/15.4) - Apr 10, 2025
 
 [macOS Sequoia 15.4](https://developer.apple.com/documentation/macos-release-notes/macos-15_4-release-notes) SDK packaged using [osxcross](https://github.com/tpoechtrager/osxcross#packaging-the-sdk).
@@ -294,6 +306,7 @@ Please ensure you have read and understood the [Xcode license terms](https://www
 
 [Changes][10.15]
 
+[15.5]: https://github.com/joseluisq/macosx-sdks/compare/15.4...15.5
 [15.4]: https://github.com/joseluisq/macosx-sdks/compare/15.2...15.4
 [15.2]: https://github.com/joseluisq/macosx-sdks/compare/15.1...15.2
 [15.1]: https://github.com/joseluisq/macosx-sdks/compare/15.0...15.1
diff --git a/README.md b/README.md
index dd92cd4..9c8fdf0 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,7 @@ Please ensure you have read and understood first the [Xcode license terms](https
 
 ## SDKs
 
+- [Mac OS X 15.5 (macOS Sequoia)](https://github.com/joseluisq/macosx-sdks/releases/tag/15.5)
 - [Mac OS X 15.4 (macOS Sequoia)](https://github.com/joseluisq/macosx-sdks/releases/tag/15.4)
 - [Mac OS X 15.2 (macOS Sequoia)](https://github.com/joseluisq/macosx-sdks/releases/tag/15.2)
 - [Mac OS X 15.1 (macOS Sequoia)](https://github.com/joseluisq/macosx-sdks/releases/tag/15.1)
diff --git a/macosx_sdks.json b/macosx_sdks.json
index f23fa20..213c55d 100644
--- a/macosx_sdks.json
+++ b/macosx_sdks.json
@@ -1,4 +1,17 @@
 [
+    {
+        "version": "macOS 15.5",
+        "name": "Sequoia",
+        "darwin": "24.5.0",
+        "release_date": "2025-05-12",
+        "architectures": [
+            "x86_64",
+            "arm64"
+        ],
+        "github_release": "https://github.com/joseluisq/macosx-sdks/releases/tag/15.5",
+        "github_download_url": "https://github.com/joseluisq/macosx-sdks/releases/download/15.5/MacOSX15.5.sdk.tar.xz",
+        "github_download_sha256sum": "c15cf0f3f17d714d1aa5a642da8e118db53d79429eb015771ba816aa7c6c1cbd"
+    },
     {
         "version": "macOS 15.4",
         "name": "Sequoia",