diff --git a/packages/core/package.json b/packages/core/package.json
index 4ee1f91..496f8ef 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -22,7 +22,7 @@
     "test": "tsdx test --coverage",
     "lint": "prettier --check README.md && tsdx lint src",
     "format": "prettier --write README.md \"src/**/*.{js,jsx,ts,tsx,json,md}\"",
-    "prepare": "tsdx build"
+    "prepare": "yarn build"
   },
   "peerDependencies": {
     "react": ">=16.8.0",
diff --git a/packages/dom/package.json b/packages/dom/package.json
index 567ea7d..3c9c541 100644
--- a/packages/dom/package.json
+++ b/packages/dom/package.json
@@ -22,7 +22,7 @@
     "test": "tsdx test --coverage",
     "lint": "prettier --check README.md && tsdx lint src",
     "format": "prettier --write README.md \"src/**/*.{js,jsx,ts,tsx,json,md}\"",
-    "prepare": "tsdx build"
+    "prepare": "yarn build"
   },
   "peerDependencies": {
     "react": ">=16.8.0",
diff --git a/packages/utils/package.json b/packages/utils/package.json
index 946c006..a876325 100644
--- a/packages/utils/package.json
+++ b/packages/utils/package.json
@@ -22,7 +22,7 @@
     "test": "tsdx test --coverage",
     "lint": "prettier --check README.md && tsdx lint src",
     "format": "prettier --write README.md \"src/**/*.{js,jsx,ts,tsx,json,md}\"",
-    "prepare": "tsdx build"
+    "prepare": "yarn build"
   },
   "peerDependencies": {
     "@react-rxjs/core": ">=0.1.0",