diff --git a/docs/package.json b/docs/package.json
index aed18db6846de..4969cb4cfe386 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "docs",
-  "version": "4.0.0-alpha.11",
+  "version": "4.0.0-alpha.12",
   "private": true,
   "author": "Material-UI Team",
   "license": "MIT",
diff --git a/lerna.json b/lerna.json
index 2905b617bd280..c4931268015f1 100644
--- a/lerna.json
+++ b/lerna.json
@@ -10,7 +10,7 @@
     "packages/*",
     "packages/grid/*"
   ],
-  "version": "4.0.0-alpha.11",
+  "version": "4.0.0-alpha.12",
   "npmClient": "yarn",
   "useWorkspaces": true
 }
diff --git a/packages/demo-app/package.json b/packages/demo-app/package.json
index 2dbd6c6a5363d..b95fdd97c7fc2 100644
--- a/packages/demo-app/package.json
+++ b/packages/demo-app/package.json
@@ -1,12 +1,12 @@
 {
   "name": "demo-app",
-  "version": "4.0.0-alpha.11",
+  "version": "4.0.0-alpha.12",
   "private": true,
   "dependencies": {
     "@material-ui/core": "^4.9.12",
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "^4.0.0-alpha.54",
-    "@material-ui/x-grid": "^4.0.0-alpha.11",
+    "@material-ui/x-grid": "^4.0.0-alpha.12",
     "@material-ui/x-grid-data-generator": "^4.0.0-alpha.11",
     "@trendmicro/react-interpolate": "^0.5.5",
     "react": "^16.13.1",
diff --git a/packages/grid/data-grid/package.json b/packages/grid/data-grid/package.json
index 07789278ea1f2..f63130197ab6c 100644
--- a/packages/grid/data-grid/package.json
+++ b/packages/grid/data-grid/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@material-ui/data-grid",
-  "version": "4.0.0-alpha.11",
+  "version": "4.0.0-alpha.12",
   "description": "The Material-UI community edition of the data grid component.",
   "author": "Material-UI Team",
   "main": "dist/index-cjs.js",
diff --git a/packages/grid/x-grid/package.json b/packages/grid/x-grid/package.json
index 37f3d1d0feb53..f7157ed32c035 100644
--- a/packages/grid/x-grid/package.json
+++ b/packages/grid/x-grid/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@material-ui/x-grid",
-  "version": "4.0.0-alpha.11",
+  "version": "4.0.0-alpha.12",
   "description": "The Material-UI X edition of the data grid component.",
   "author": "Material-UI Team",
   "main": "dist/index-cjs.js",
diff --git a/packages/storybook/package.json b/packages/storybook/package.json
index 4820c51a44557..f58fc450504b8 100644
--- a/packages/storybook/package.json
+++ b/packages/storybook/package.json
@@ -1,6 +1,6 @@
 {
   "name": "storybook",
-  "version": "4.0.0-alpha.11",
+  "version": "4.0.0-alpha.12",
   "description": "Storybook components",
   "author": "Material-UI Team",
   "private": true,
@@ -15,10 +15,10 @@
   },
   "dependencies": {
     "@material-ui/core": "^4.9.12",
-    "@material-ui/data-grid": "^4.0.0-alpha.11",
+    "@material-ui/data-grid": "^4.0.0-alpha.12",
     "@material-ui/icons": "^4.9.1",
     "@material-ui/lab": "^4.0.0-alpha.54",
-    "@material-ui/x-grid": "^4.0.0-alpha.11",
+    "@material-ui/x-grid": "^4.0.0-alpha.12",
     "@material-ui/x-grid-data-generator": "^4.0.0-alpha.11",
     "@material-ui/x-license": "^4.0.0-alpha.11",
     "react": "^16.13.1",