diff --git a/package.json b/package.json
index 13c6861cef..b9d6d32591 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "private": true,
-  "version": "16.3.0-alpha.0",
+  "version": "16.3.0-alpha.1",
   "workspaces": [
     "packages/*"
   ],
diff --git a/packages/react-art/package.json b/packages/react-art/package.json
index 8dfd126400..87c530c0ae 100644
--- a/packages/react-art/package.json
+++ b/packages/react-art/package.json
@@ -1,7 +1,7 @@
 {
   "name": "react-art",
   "description": "React ART is a JavaScript library for drawing vector graphics using React. It provides declarative and reactive bindings to the ART library. Using the same declarative API you can render the output to either Canvas, SVG or VML (IE8).",
-  "version": "16.3.0-alpha.0",
+  "version": "16.3.0-alpha.1",
   "main": "index.js",
   "repository": "facebook/react",
   "keywords": [
@@ -26,7 +26,7 @@
     "prop-types": "^15.6.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0 || 16.3.0-alpha.0"
+    "react": "^16.0.0 || 16.3.0-alpha.1"
   },
   "files": [
     "LICENSE",
diff --git a/packages/react-call-return/package.json b/packages/react-call-return/package.json
index 42840493ac..722802842c 100644
--- a/packages/react-call-return/package.json
+++ b/packages/react-call-return/package.json
@@ -1,7 +1,7 @@
 {
   "name": "react-call-return",
   "description": "Experimental APIs for multi-pass rendering in React.",
-  "version": "0.6.0-alpha.0",
+  "version": "0.6.0-alpha.1",
   "repository": "facebook/react",
   "files": [
     "LICENSE",
@@ -14,6 +14,6 @@
     "object-assign": "^4.1.1"
   },
   "peerDependencies": {
-    "react": "^16.0.0 || 16.3.0-alpha.0"
+    "react": "^16.0.0 || 16.3.0-alpha.1"
   }
 }
diff --git a/packages/react-dom/package.json b/packages/react-dom/package.json
index 379a754ac1..beea3e497f 100644
--- a/packages/react-dom/package.json
+++ b/packages/react-dom/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-dom",
-  "version": "16.3.0-alpha.0",
+  "version": "16.3.0-alpha.1",
   "description": "React package for working with the DOM.",
   "main": "index.js",
   "repository": "facebook/react",
@@ -19,7 +19,7 @@
     "prop-types": "^15.6.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0 || 16.3.0-alpha.0"
+    "react": "^16.0.0 || 16.3.0-alpha.1"
   },
   "files": [
     "LICENSE",
diff --git a/packages/react-is/package.json b/packages/react-is/package.json
index 8fd899a90e..5559d9fddf 100644
--- a/packages/react-is/package.json
+++ b/packages/react-is/package.json
@@ -1,17 +1,19 @@
 {
   "name": "react-is",
-  "version": "16.3.0-alpha.0",
+  "version": "16.3.0-alpha.1",
   "description": "Brand checking of React Elements.",
   "main": "index.js",
   "repository": "facebook/react",
-  "keywords": ["react"],
+  "keywords": [
+    "react"
+  ],
   "license": "MIT",
   "bugs": {
     "url": "https://github.com/facebook/react/issues"
   },
   "homepage": "https://reactjs.org/",
   "peerDependencies": {
-    "react": "^16.0.0 || 16.3.0-alpha.0"
+    "react": "^16.0.0 || 16.3.0-alpha.1"
   },
   "files": [
     "LICENSE",
@@ -20,4 +22,4 @@
     "cjs/",
     "umd/"
   ]
-}
\ No newline at end of file
+}
diff --git a/packages/react-reconciler/package.json b/packages/react-reconciler/package.json
index 7679a2b11d..eef1b7ef19 100644
--- a/packages/react-reconciler/package.json
+++ b/packages/react-reconciler/package.json
@@ -1,7 +1,7 @@
 {
   "name": "react-reconciler",
   "description": "React package for creating custom renderers.",
-  "version": "0.8.0-alpha.0",
+  "version": "0.8.0-alpha.1",
   "keywords": [
     "react"
   ],
@@ -22,7 +22,7 @@
     "node": ">=0.10.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0 || 16.3.0-alpha.0"
+    "react": "^16.0.0 || 16.3.0-alpha.1"
   },
   "dependencies": {
     "fbjs": "^0.8.16",
diff --git a/packages/react-test-renderer/package.json b/packages/react-test-renderer/package.json
index 7aaa839f33..74bb83f43b 100644
--- a/packages/react-test-renderer/package.json
+++ b/packages/react-test-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-test-renderer",
-  "version": "16.3.0-alpha.0",
+  "version": "16.3.0-alpha.1",
   "description": "React package for snapshot testing.",
   "main": "index.js",
   "repository": "facebook/react",
@@ -20,7 +20,7 @@
     "prop-types": "^15.6.0"
   },
   "peerDependencies": {
-    "react": "^16.0.0 || 16.3.0-alpha.0"
+    "react": "^16.0.0 || 16.3.0-alpha.1"
   },
   "files": [
     "LICENSE",
diff --git a/packages/react/package.json b/packages/react/package.json
index 1df29de8ff..e02915d2ad 100644
--- a/packages/react/package.json
+++ b/packages/react/package.json
@@ -4,7 +4,7 @@
   "keywords": [
     "react"
   ],
-  "version": "16.3.0-alpha.0",
+  "version": "16.3.0-alpha.1",
   "homepage": "https://reactjs.org/",
   "bugs": "https://github.com/facebook/react/issues",
   "license": "MIT",
diff --git a/packages/shared/ReactVersion.js b/packages/shared/ReactVersion.js
index 3781246bb3..08787db3b2 100644
--- a/packages/shared/ReactVersion.js
+++ b/packages/shared/ReactVersion.js
@@ -8,4 +8,4 @@
 'use strict';
 
 // TODO: this is special because it gets imported during build.
-module.exports = '16.3.0-alpha.0';
+module.exports = '16.3.0-alpha.1';