diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1674ca5d0..95cf313ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,7 @@ project(NS3 CXX)
 file(STRINGS VERSION NS3_VER)
 
 # minimum compiler versions
-set(AppleClang_MinVersion 16.0.0)
+set(AppleClang_MinVersion 15.0.0)
 set(Clang_MinVersion 17.0.0)
 set(GNU_MinVersion 11.0.0)