diff --git a/addons/prop-types/lib/ReactPropTypesSecret.js b/addons/prop-types/lib/ReactPropTypesSecret.js
index 97d4bfb0c9..15ca6a9461 100644
--- a/addons/prop-types/lib/ReactPropTypesSecret.js
+++ b/addons/prop-types/lib/ReactPropTypesSecret.js
@@ -9,6 +9,6 @@
 
 'use strict';
 
-const ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
+var ReactPropTypesSecret = 'SECRET_DO_NOT_PASS_THIS_OR_YOU_WILL_BE_FIRED';
 
 module.exports = ReactPropTypesSecret;
diff --git a/addons/prop-types/package.json b/addons/prop-types/package.json
index abcd6f3d21..c105fe099a 100644
--- a/addons/prop-types/package.json
+++ b/addons/prop-types/package.json
@@ -1,6 +1,6 @@
 {
   "name": "prop-types",
-  "version": "15.5.0",
+  "version": "15.5.1",
   "description": "Runtime type checking for React props and similar objects.",
   "main": "index.js",
   "license": "BSD-3-Clause",
diff --git a/addons/react-addons-create-fragment/index.js b/addons/react-addons-create-fragment/index.js
index 1e62b36528..9f2909b53f 100644
--- a/addons/react-addons-create-fragment/index.js
+++ b/addons/react-addons-create-fragment/index.js
@@ -439,4 +439,4 @@ module.exports = function(React) {
   }
 
   return createReactFragment;
-}
+}(React);