diff --git a/components/form.js b/components/form.js
index 4a275b2bf..7abad5820 100644
--- a/components/form.js
+++ b/components/form.js
@@ -450,7 +450,9 @@ function InputInner ({
       if (draft) {
         // for some reason we have to turn off validation to get formik to
         // not assume this is invalid
-        helpers.setValue(draft, false)
+        const isNumeric = /^[0-9]+$/.test(draft)
+        const numericExpected = typeof field.value === 'number'
+        helpers.setValue(isNumeric && numericExpected ? parseInt(draft) : draft, false)
         onChange && onChange(formik, { target: { value: draft } })
       }
     }