diff --git a/src/components/inputs/NumberInput.jsx b/src/components/inputs/NumberInput.jsx
index 1c8326da..b2d7dec0 100644
--- a/src/components/inputs/NumberInput.jsx
+++ b/src/components/inputs/NumberInput.jsx
@@ -8,6 +8,7 @@ class NumberInput extends React.Component {
     min: PropTypes.number,
     max: PropTypes.number,
     onChange: PropTypes.func,
+    required: PropTypes.bool,
   }
 
   constructor(props) {
diff --git a/src/components/inputs/StringInput.jsx b/src/components/inputs/StringInput.jsx
index 2819cc08..e160d69b 100644
--- a/src/components/inputs/StringInput.jsx
+++ b/src/components/inputs/StringInput.jsx
@@ -9,6 +9,7 @@ class StringInput extends React.Component {
     default: PropTypes.string,
     onChange: PropTypes.func,
     multi: PropTypes.bool,
+    required: PropTypes.bool,
   }
 
   constructor(props) {