diff --git a/package.json b/package.json
index e79d2a8e2..1d396e9bb 100644
--- a/package.json
+++ b/package.json
@@ -1,40 +1,40 @@
 {
   "private": true,
   "license": "BSD-3-Clause",
   "workspaces": [
     "lib",
     "web",
     "native",
     "keyserver",
     "landing"
   ],
   "scripts": {
     "clean": "yarn workspace lib clean && yarn workspace web clean && yarn workspace native clean && yarn workspace keyserver clean && yarn workspace landing clean && rm -rf node_modules/",
-    "cleaninstall": "yarn clean && yarn",
+    "cleaninstall": "(killall flow || pkill flow || true) && yarn clean && yarn",
     "eslint": "eslint .",
     "eslint:fix": "eslint --fix .",
     "clang-format-all": "eval `node scripts/get_clang_paths_cli.js` | xargs clang-format -i",
     "rust-pre-commit": "./scripts/rust_pre_commit.sh",
     "terraform-pre-commit": "./scripts/terraform_pre_commit.sh",
     "prepare": "husky install"
   },
   "devDependencies": {
     "babel-eslint": "^10.1.0",
     "clang-format": "^1.8.0",
     "core-js": "^3.6.5",
     "eslint": "^7.22.0",
     "eslint-config-prettier": "^8.1.0",
     "eslint-plugin-flowtype": "^5.4.0",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-jest": "^24.2.2",
     "eslint-plugin-monorepo": "^0.3.2",
     "eslint-plugin-prettier": "^3.3.1",
     "eslint-plugin-react": "^7.22.0",
     "eslint-plugin-react-hooks": "^4.2.0",
     "eslint-plugin-react-native": "^3.10.0",
     "gaxios": "^4.3.2",
     "husky": "^7.0.0",
     "lint-staged": "^12.1.4",
     "prettier": "^2.1.2"
   }
 }