diff --git a/CXXModuleExperimentalSupport.cmake b/CXXModuleExperimentalSupport.cmake
index 01e25b1..a34c63a 100644
--- a/CXXModuleExperimentalSupport.cmake
+++ b/CXXModuleExperimentalSupport.cmake
@@ -1,5 +1,5 @@
-# Ack use of experimental features in CMake 3.27
-set(CMAKE_EXPERIMENTAL_CXX_MODULE_CMAKE_API "ac01f462-0f5f-432a-86aa-acef252918a6")
+# Ack use of experimental features in CMake 3.27.7
+set(CMAKE_EXPERIMENTAL_CXX_MODULE_CMAKE_API "aa1f7df0-828a-4fcd-9afc-2dc80491aca7")
 
 # This setup is MSVC-only for now, for `std` and `std.compat` standard C++ modules.
 # These Standard Library Modules are available only in C++23 and up.  Make sure you've