diff --git a/extra/clang/checksums b/extra/clang/checksums
index 62d3e474..db9fdd89 100644
--- a/extra/clang/checksums
+++ b/extra/clang/checksums
@@ -1,2 +1,2 @@
-8332e29b59b68f2633a88cf7ac88d5a2798534b7476979e9365bc48ce117218387
-aeaefdf13db56e135034b60c6ac7f47ff649a52b25d3b5b739e320cfdf49a4a227
+3d677cb5a0258ae910719528e463a59cf270a3414e3e4807e9fefc36437474e0a5
+78c57fd0ae1cf67b61210b2d6be58aa51372161e8de66efa78a268dcdb348520b3
diff --git a/extra/clang/sources b/extra/clang/sources
index 20d18906..d3305d4c 100644
--- a/extra/clang/sources
+++ b/extra/clang/sources
@@ -1,2 +1,2 @@
-https://github.com/llvm/llvm-project/releases/download/llvmorg-17.0.6/clang-17.0.6.src.tar.xz clang
-https://github.com/llvm/llvm-project/releases/download/llvmorg-17.0.6/cmake-17.0.6.src.tar.xz cmake
+https://github.com/llvm/llvm-project/releases/download/llvmorg-18.1.2/clang-18.1.2.src.tar.xz clang
+https://github.com/llvm/llvm-project/releases/download/llvmorg-18.1.2/cmake-18.1.2.src.tar.xz cmake
diff --git a/extra/clang/version b/extra/clang/version
index 7c1bf1b3..a9fb2295 100644
--- a/extra/clang/version
+++ b/extra/clang/version
@@ -1 +1 @@
-17.0.6 1
+18.1.2 1