diff --git a/Makefile b/Makefile
index d5c51e9..d096ba3 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 build:
 	@echo "Building ts code..."
 	rm -rf dist
-	yarn tsc --module commonjs
+	tsc --module commonjs
 
 .PHONY: test
 test: