diff --git a/llvm_version.cmake b/llvm_version.cmake
index 02bd12d..e2e6a1b 100644
--- a/llvm_version.cmake
+++ b/llvm_version.cmake
@@ -1,2 +1,2 @@
-set(LLVM_VERSION 21.1.7)
-set(LLVM_SHA256 eeb5296f46eacc0a1fe6c47a1af9e8d4eb2a5da7254fd8dbc4fc1f1be74315a1)
+set(LLVM_VERSION 21.1.8)
+set(LLVM_SHA256 6090e3f23720d003cdd84483a47d0eec6d01adbb5e0c714ac0c8b58de546aa62)