diff --git a/packages/eslint-config-airbnb/rules/react.js b/packages/eslint-config-airbnb/rules/react.js
index 03958615..5fbe8b35 100644
--- a/packages/eslint-config-airbnb/rules/react.js
+++ b/packages/eslint-config-airbnb/rules/react.js
@@ -481,9 +481,8 @@ module.exports = {
 
     // Enforce state initialization style
     // https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/state-in-constructor.md
-    // TODO: enable, semver-minor
     // TODO: set to "always" once babel-preset-airbnb supports public class fields
-    'react/state-in-constructor': ['off', 'never'],
+    'react/state-in-constructor': ['error', 'never'],
 
     // Enforces where React component static properties should be positioned
     // https://github.com/yannickcr/eslint-plugin-react/blob/master/docs/rules/static-property-placement.md