diff --git a/.prettierignore b/.prettierignore
new file mode 100644
index 000000000..687fa6df3
--- /dev/null
+++ b/.prettierignore
@@ -0,0 +1,4 @@
+build
+coverage
+packages
+scripts
diff --git a/.prettierrc.cjs b/.prettierrc.cjs
new file mode 100644
index 000000000..bc6236299
--- /dev/null
+++ b/.prettierrc.cjs
@@ -0,0 +1,4 @@
+// Copyright 2030-2021 @polkadot/phishing authors & contributors
+// SPDX-License-Identifier: Apache-2.0
+
+module.exports = require('@polkadot/dev/config/prettier.cjs');