diff --git a/src/google/protobuf/arena.cc b/src/google/protobuf/arena.cc
index b83793e300cf..6ac4bab6c6c1 100644
--- a/src/google/protobuf/arena.cc
+++ b/src/google/protobuf/arena.cc
@@ -453,7 +453,7 @@ ThreadSafeArena::ThreadCache& ThreadSafeArena::thread_cache() {
   return thread_cache;
 }
 #else
-ABSL_CONST_INIT PROTOBUF_THREAD_LOCAL
+PROTOBUF_CONSTINIT PROTOBUF_THREAD_LOCAL
     ThreadSafeArena::ThreadCache ThreadSafeArena::thread_cache_;
 #endif
 
diff --git a/src/google/protobuf/thread_safe_arena.h b/src/google/protobuf/thread_safe_arena.h
index 1da9d091e693..fa2be1b1cf5f 100644
--- a/src/google/protobuf/thread_safe_arena.h
+++ b/src/google/protobuf/thread_safe_arena.h
@@ -260,7 +260,7 @@ class PROTOBUF_EXPORT ThreadSafeArena {
   // wrap them in static functions.
   static ThreadCache& thread_cache();
 #else
-  ABSL_CONST_INIT static PROTOBUF_THREAD_LOCAL ThreadCache thread_cache_;
+  PROTOBUF_CONSTINIT static PROTOBUF_THREAD_LOCAL ThreadCache thread_cache_;
   static ThreadCache& thread_cache() { return thread_cache_; }
 #endif