diff --git a/package.json b/package.json
index c89c7f7..9db8b77 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
         "!/contracts/mocks/**/*"
     ],
     "scripts": {
-        "build:all": "blueprint build --all",
+        "build:all": "rm -rf ./build/* && blueprint build --all",
         "test": "jest --verbose",
         "format": "npx prettier -w ."
     },