diff --git a/packages/stack/example/src/SimpleStack.js b/packages/stack/example/src/SimpleStack.js
index cb4e3603..c6252be5 100644
--- a/packages/stack/example/src/SimpleStack.js
+++ b/packages/stack/example/src/SimpleStack.js
@@ -3,7 +3,7 @@ import { Dimensions, Button, View, Text } from 'react-native';
 import { withNavigation } from '@react-navigation/core';
 import { createStackNavigator } from 'react-navigation-stack';
 
-const Buttons = withNavigation((props) => (
+const Buttons = withNavigation(props => (
   <React.Fragment>
     <Button
       title="Go to Details"
@@ -49,7 +49,7 @@ class DetailsScreen extends React.Component {
     title: 'Details',
     gestureResponseDistance: {
       horizontal: Dimensions.get('window').width,
-    }
+    },
   };
 
   render() {
diff --git a/packages/stack/src/views/Header/ModularHeaderBackButton.js b/packages/stack/src/views/Header/ModularHeaderBackButton.js
index b3ef0851..977be2bd 100644
--- a/packages/stack/src/views/Header/ModularHeaderBackButton.js
+++ b/packages/stack/src/views/Header/ModularHeaderBackButton.js
@@ -95,15 +95,7 @@ class ModularHeaderBackButton extends React.PureComponent {
   }
 
   render() {
-    const {
-      onPress,
-      width,
-      title,
-      titleStyle,
-      tintColor,
-      truncatedTitle,
-    } = this.props;
-
+    const { onPress, title } = this.props;
     const { ButtonContainerComponent } = this.props;
 
     return (
diff --git a/packages/stack/src/views/StackView/StackViewStyleInterpolator.js b/packages/stack/src/views/StackView/StackViewStyleInterpolator.js
index 817eef24..ba7d208d 100644
--- a/packages/stack/src/views/StackView/StackViewStyleInterpolator.js
+++ b/packages/stack/src/views/StackView/StackViewStyleInterpolator.js
@@ -124,8 +124,6 @@ function forFadeFromBottomAndroid(props) {
 
   const { first, last } = interpolate;
   const index = scene.index;
-  const inputRange = [first, index, last];
-
   const opacity = position.interpolate({
     inputRange: [first, first + 0.5, first + 0.9, index, last],
     outputRange: [0, 0.25, 0.7, 1, 0],
@@ -161,7 +159,7 @@ function forFadeToBottomAndroid(props) {
   const inputRange = [first, index, last];
 
   const opacity = position.interpolate({
-    inputRange: [first, index, last],
+    inputRange,
     outputRange: [0, 1, 0],
     extrapolate: 'clamp',
   });
@@ -170,7 +168,7 @@ function forFadeToBottomAndroid(props) {
   const maxTranslation = height * 0.08;
 
   const translateY = position.interpolate({
-    inputRange: [first, index, last],
+    inputRange,
     outputRange: [maxTranslation, 0, 0],
     extrapolate: 'clamp',
   });