diff --git a/Makefile b/Makefile
index 70db23b..363563a 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 PKG := github.com/goccy/go-json
 
 BIN_DIR := $(CURDIR)/bin
-PKGS := $(shell go list ./... | grep -v internal/cmd)
+PKGS := $(shell go list ./... | grep -v internal/cmd|grep -v test)
 COVER_PKGS := $(foreach pkg,$(PKGS),$(subst $(PKG),.,$(pkg)))
 
 COMMA := ,