diff --git a/package.json b/package.json
index dc93fc28..2c42f3b3 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,7 @@
     "babel-plugin-add-module-exports": "^0.2.1",
     "babel-plugin-dev-expression": "^0.2.1",
     "babel-plugin-transform-object-assign": "^6.22.0",
+    "babel-plugin-transform-react-remove-prop-types": "^0.4.5",
     "babel-preset-latest": "^6.24.0",
     "babel-preset-react": "^6.23.0",
     "babel-preset-stage-2": "^6.18.0",
diff --git a/src/CSSTransitionGroup.js b/src/CSSTransitionGroup.js
index 73242f4a..5d4f2a5e 100644
--- a/src/CSSTransitionGroup.js
+++ b/src/CSSTransitionGroup.js
@@ -5,22 +5,6 @@ import TransitionGroup from './TransitionGroup';
 import CSSTransitionGroupChild from './CSSTransitionGroupChild';
 import { nameShape, transitionTimeout } from './utils/PropTypes';
 
-const propTypes = {
-  transitionName: nameShape.isRequired,
-
-  transitionAppear: PropTypes.bool,
-  transitionEnter: PropTypes.bool,
-  transitionLeave: PropTypes.bool,
-  transitionAppearTimeout: transitionTimeout('Appear'),
-  transitionEnterTimeout: transitionTimeout('Enter'),
-  transitionLeaveTimeout: transitionTimeout('Leave'),
-};
-
-const defaultProps = {
-  transitionAppear: false,
-  transitionEnter: true,
-  transitionLeave: true,
-};
 
 class CSSTransitionGroup extends React.Component {
 
@@ -53,7 +37,21 @@ class CSSTransitionGroup extends React.Component {
   }
 }
 
-CSSTransitionGroup.propTypes = propTypes;
-CSSTransitionGroup.defaultProps = defaultProps;
+CSSTransitionGroup.propTypes = {
+  transitionName: nameShape.isRequired,
+
+  transitionAppear: PropTypes.bool,
+  transitionEnter: PropTypes.bool,
+  transitionLeave: PropTypes.bool,
+  transitionAppearTimeout: transitionTimeout('Appear'),
+  transitionEnterTimeout: transitionTimeout('Enter'),
+  transitionLeaveTimeout: transitionTimeout('Leave'),
+};
+
+CSSTransitionGroup.defaultProps = {
+  transitionAppear: false,
+  transitionEnter: true,
+  transitionLeave: true,
+};
 
 export default CSSTransitionGroup;
diff --git a/src/CSSTransitionGroupChild.js b/src/CSSTransitionGroupChild.js
index e72bc2c7..cf8f6bea 100644
--- a/src/CSSTransitionGroupChild.js
+++ b/src/CSSTransitionGroupChild.js
@@ -26,20 +26,6 @@ function addEndListener(node, listener) {
   };
 }
 
-const propTypes = {
-  children: PropTypes.node,
-  name: nameShape.isRequired,
-
-  // Once we require timeouts to be specified, we can remove the
-  // boolean flags (appear etc.) and just accept a number
-  // or a bool for the timeout flags (appearTimeout etc.)
-  appear: PropTypes.bool,
-  enter: PropTypes.bool,
-  leave: PropTypes.bool,
-  appearTimeout: PropTypes.number,
-  enterTimeout: PropTypes.number,
-  leaveTimeout: PropTypes.number,
-};
 
 class CSSTransitionGroupChild extends React.Component {
 
@@ -176,6 +162,19 @@ class CSSTransitionGroupChild extends React.Component {
   }
 }
 
-CSSTransitionGroupChild.propTypes = propTypes;
+CSSTransitionGroupChild.propTypes = {
+  children: PropTypes.node,
+  name: nameShape.isRequired,
+
+  // Once we require timeouts to be specified, we can remove the
+  // boolean flags (appear etc.) and just accept a number
+  // or a bool for the timeout flags (appearTimeout etc.)
+  appear: PropTypes.bool,
+  enter: PropTypes.bool,
+  leave: PropTypes.bool,
+  appearTimeout: PropTypes.number,
+  enterTimeout: PropTypes.number,
+  leaveTimeout: PropTypes.number,
+};
 
 export default CSSTransitionGroupChild;
diff --git a/src/TransitionGroup.js b/src/TransitionGroup.js
index 2cba6a6a..27d6e001 100644
--- a/src/TransitionGroup.js
+++ b/src/TransitionGroup.js
@@ -6,18 +6,6 @@ import warning from 'warning';
 import { getChildMapping, mergeChildMappings } from './utils/ChildMapping';
 
 
-const propTypes = {
-  component: PropTypes.any,
-  childFactory: PropTypes.func,
-  children: PropTypes.node,
-};
-
-const defaultProps = {
-  component: 'span',
-  childFactory: child => child,
-};
-
-
 class TransitionGroup extends React.Component {
   static displayName = 'TransitionGroup';
 
@@ -243,7 +231,15 @@ class TransitionGroup extends React.Component {
   }
 }
 
-TransitionGroup.propTypes = propTypes;
-TransitionGroup.defaultProps = defaultProps;
+TransitionGroup.propTypes = {
+  component: PropTypes.any,
+  childFactory: PropTypes.func,
+  children: PropTypes.node,
+};
+
+TransitionGroup.defaultProps = {
+  component: 'span',
+  childFactory: child => child,
+};
 
 export default TransitionGroup;