diff --git a/extlib/benz b/extlib/benz
index a7ae88e2..2440372c 160000
--- a/extlib/benz
+++ b/extlib/benz
@@ -1 +1 @@
-Subproject commit a7ae88e224b797d2f094ff8c093b6bf5fbe5e7b7
+Subproject commit 2440372c16fd1e479ad8aa346f6006dbf795a74c
diff --git a/src/main.c b/src/main.c
index 656be69b..7d4f6fd1 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2,10 +2,6 @@
  * See Copyright Notice in picrin.h
  */
 
-#define PIC_ARENA_SIZE (8 * 1024)
-#define PIC_HEAP_PAGE_SIZE (2 * 1024 * 1024)
-#define PIC_SYM_POOL_SIZE (2 * 1024)
-
 #include "picrin.h"
 #include "picrin/pair.h"
 #include "picrin/error.h"