diff --git a/contrib/absl/absl/base/options.h b/contrib/absl/absl/base/options.h
index 230bf1ee..9e5b26ff 100644
--- a/contrib/absl/absl/base/options.h
+++ b/contrib/absl/absl/base/options.h
@@ -70,8 +70,12 @@
 // Include a standard library header to allow configuration based on the
 // standard library in use.
 #ifdef __cplusplus
+#if __cplusplus >= 202002L
+#include <version>
+#else
 #include <ciso646>
 #endif
+#endif
 
 // -----------------------------------------------------------------------------
 // Type Compatibility Options