diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3329318a..8896fe0be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -514,7 +514,7 @@ endif()
 # against all the src files. This should be used before making a pull request.
 # =======================================================================
 
-set(CLANG_FORMAT_POSTFIX "-12")
+set(CLANG_FORMAT_POSTFIX "-15")
 find_program(CLANG_FORMAT
     NAMES clang-format${CLANG_FORMAT_POSTFIX}
           clang-format