diff --git a/packages/create-react-app/createReactApp.js b/packages/create-react-app/createReactApp.js
index f7e5dffd4ff..ff4beff99a2 100755
--- a/packages/create-react-app/createReactApp.js
+++ b/packages/create-react-app/createReactApp.js
@@ -243,7 +243,7 @@ function createApp(
           chalk.yellow(
             `You are using npm ${
               npmInfo.npmVersion
-            } so the project will be boostrapped with an old unsupported version of tools.\n\n` +
+            } so the project will be bootstrapped with an old unsupported version of tools.\n\n` +
               `Please update to npm 3 or higher for a better, fully supported experience.\n`
           )
         );
diff --git a/packages/react-error-overlay/src/components/Collapsible.js b/packages/react-error-overlay/src/components/Collapsible.js
index 016f3c7a708..34cfd09c2a1 100644
--- a/packages/react-error-overlay/src/components/Collapsible.js
+++ b/packages/react-error-overlay/src/components/Collapsible.js
@@ -48,7 +48,7 @@ class Collapsible extends Component<Props, State> {
     collapsed: true,
   };
 
-  toggleCollaped = () => {
+  toggleCollapsed = () => {
     this.setState(state => ({
       collapsed: !state.collapsed,
     }));
@@ -60,7 +60,7 @@ class Collapsible extends Component<Props, State> {
     return (
       <div>
         <button
-          onClick={this.toggleCollaped}
+          onClick={this.toggleCollapsed}
           style={
             collapsed ? collapsibleCollapsedStyle : collapsibleExpandedStyle
           }
@@ -72,7 +72,7 @@ class Collapsible extends Component<Props, State> {
         <div style={{ display: collapsed ? 'none' : 'block' }}>
           {this.props.children}
           <button
-            onClick={this.toggleCollaped}
+            onClick={this.toggleCollapsed}
             style={collapsibleExpandedStyle}
           >
             {`▲ ${count} stack frames were expanded.`}