diff --git a/bucket/llvm-arm64.json b/bucket/llvm-arm64.json
index 25b55e1ddf..990333bf22 100644
--- a/bucket/llvm-arm64.json
+++ b/bucket/llvm-arm64.json
@@ -1,12 +1,12 @@
 {
-    "version": "21.1.0",
+    "version": "21.1.1",
     "description": "Collection of modular and reusable compiler and toolchain technologies. (arm64/aarch64 only)",
     "homepage": "https://www.llvm.org",
     "license": "NCSA",
     "architecture": {
         "arm64": {
-            "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-21.1.0/LLVM-21.1.0-woa64.exe#/dl.7z",
-            "hash": "3f181aecc83d0eb40fb966ce18b97a3602871dbff83fc91745e7e0fd6661a7f7"
+            "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-21.1.1/LLVM-21.1.1-woa64.exe#/dl.7z",
+            "hash": "44968678761de2da807f25612129833dabe4394840a75c26c2b2ee1f227640ee"
         }
     },
     "pre_install": "Remove-Item \"$dir\\`$*\", \"$dir\\Uninstall.exe\" -Recurse",