diff --git a/common.mk b/common.mk
index 58ae423..f59b696 100644
--- a/common.mk
+++ b/common.mk
@@ -21,7 +21,7 @@ ifeq ($(UNAME_S),Darwin)
   OPENSSL_DIR?=/opt/homebrew/opt/openssl@1.1
   CFLAGS+=-I$(OPENSSL_DIR)/include
   LDFLAGS+=-L$(OPENSSL_DIR)/lib
-  GMP_DIR?=/usr/local/opt/gmp
+  GMP_DIR?=/opt/homebrew/opt/gmp
   CFLAGS+=-I$(GMP_DIR)/include
   LDFLAGS+=-L$(GMP_DIR)/lib
 else
@@ -98,9 +98,9 @@ CFLAGS+=$(CFLAGS_OPT_USER)
 endif
 CFLAGS+=$(CFLAGS_USER)
 MCL_USE_GMP?=1
-ifneq ($(OS),mac/mac-m1,)
-  MCL_USE_GMP=0
-endif
+# ifneq ($(OS),mac/mac-m1,)
+#   MCL_USE_GMP=0
+# endif
 MCL_USE_OPENSSL?=1
 ifeq ($(MCL_USE_GMP),0)
   CFLAGS+=-DMCL_USE_VINT