diff --git a/Eigen/Core b/Eigen/Core
index 4ce2ed972..34838f5d7 100644
--- a/Eigen/Core
+++ b/Eigen/Core
@@ -106,6 +106,11 @@
 #include <thread>
 #endif
 
+// for __cpp_lib feature test macros
+#if defined(__has_include) && __has_include(<version>)
+#include <version>
+#endif
+
 // for std::bit_cast()
 #if defined(__cpp_lib_bit_cast) && __cpp_lib_bit_cast >= 201806L
 #include <bit>