diff --git a/packages/slate-react/src/components/leaf.tsx b/packages/slate-react/src/components/leaf.tsx
index defbb253510..30e8ee11cfe 100644
--- a/packages/slate-react/src/components/leaf.tsx
+++ b/packages/slate-react/src/components/leaf.tsx
@@ -5,6 +5,9 @@ import String from './string'
 import { PLACEHOLDER_SYMBOL } from '../utils/weak-maps'
 import { RenderLeafProps } from './editable'
 
+// auto-incrementing key for String component, force it refresh to
+// prevent inconsistent rendering by React with IME input
+let keyForString = 0
 /**
  * Individual leaves in a text node with unique formatting.
  */
@@ -25,7 +28,13 @@ const Leaf = (props: {
   } = props
 
   let children = (
-    <String isLast={isLast} leaf={leaf} parent={parent} text={text} />
+    <String
+      key={keyForString++}
+      isLast={isLast}
+      leaf={leaf}
+      parent={parent}
+      text={text}
+    />
   )
 
   if (leaf[PLACEHOLDER_SYMBOL]) {