diff --git a/src/backend/utils/activity/pgstat.c b/src/backend/utils/activity/pgstat.c
index 0d9d09c492..780a08a250 100644
--- a/src/backend/utils/activity/pgstat.c
+++ b/src/backend/utils/activity/pgstat.c
@@ -1060,7 +1060,7 @@ pgstat_prep_pending_entry(PgStat_Kind kind, Oid dboid, Oid objoid, bool *created
 	if (unlikely(!pgStatPendingContext))
 	{
 		pgStatPendingContext =
-			AllocSetContextCreate(CacheMemoryContext,
+			AllocSetContextCreate(TopMemoryContext,
 								  "PgStat Pending",
 								  ALLOCSET_SMALL_SIZES);
 	}
diff --git a/src/backend/utils/activity/pgstat_shmem.c b/src/backend/utils/activity/pgstat_shmem.c
index 89060ef29a..29bb99e210 100644
--- a/src/backend/utils/activity/pgstat_shmem.c
+++ b/src/backend/utils/activity/pgstat_shmem.c
@@ -976,12 +976,12 @@ pgstat_setup_memcxt(void)
 {
 	if (unlikely(!pgStatSharedRefContext))
 		pgStatSharedRefContext =
-			AllocSetContextCreate(CacheMemoryContext,
+			AllocSetContextCreate(TopMemoryContext,
 								  "PgStat Shared Ref",
 								  ALLOCSET_SMALL_SIZES);
 	if (unlikely(!pgStatEntryRefHashContext))
 		pgStatEntryRefHashContext =
-			AllocSetContextCreate(CacheMemoryContext,
+			AllocSetContextCreate(TopMemoryContext,
 								  "PgStat Shared Ref Hash",
 								  ALLOCSET_SMALL_SIZES);
 }