diff --git a/README.md b/README.md
index 82300a56f4..5a346c24d7 100644
--- a/README.md
+++ b/README.md
@@ -47,7 +47,7 @@ Ensure you have the required dependencies:
 
  * CMake >= 3.15
  * System C/C++ Toolchain
- * LLVM, Clang, LLD development libraries == 20.x
+ * LLVM, Clang, LLD development libraries == 21.x
 
 Then it is the standard CMake build process: