diff --git a/examples/sandbox-v3/package.json b/examples/sandbox-v3/package.json
index fff482df..63d0b654 100644
--- a/examples/sandbox-v3/package.json
+++ b/examples/sandbox-v3/package.json
@@ -1,12 +1,12 @@
 {
   "private": true,
   "name": "sandbox",
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "dependencies": {
     "react": "^16.4.0",
     "react-dom": "^16.4.2",
     "react-scripts": "^2.1.1",
-    "rebass": "^4.0.0-0",
+    "rebass": "^4.0.0",
     "styled-components": "^4.0.0"
   },
   "scripts": {
diff --git a/lerna.json b/lerna.json
index 6ae3a845..dfbe6d60 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,5 +1,5 @@
 {
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "npmClient": "yarn",
   "useWorkspaces": true,
   "packages": [
diff --git a/packages/docs/package.json b/packages/docs/package.json
index a77dcd83..280eaea2 100644
--- a/packages/docs/package.json
+++ b/packages/docs/package.json
@@ -1,7 +1,7 @@
 {
   "private": true,
   "name": "docs",
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "main": "index.js",
   "license": "MIT",
   "scripts": {
@@ -16,8 +16,8 @@
     "@jxnblk/react-live": "^2.1.2-1",
     "@mdx-js/mdx": "^1.1.4",
     "@mdx-js/react": "^1.1.4",
-    "@rebass/preset": "4.0.0-0",
-    "@rebass/preset-material": "4.0.0-0",
+    "@rebass/preset": "^4.0.0",
+    "@rebass/preset-material": "^4.0.0",
     "@theme-ui/presets": "^0.2.25",
     "@theme-ui/prism": "^0.2.25",
     "@theme-ui/sidenav": "^0.2.26",
@@ -30,7 +30,7 @@
     "react": "^16.8.6",
     "react-dom": "^16.8.6",
     "react-helmet": "^5.2.1",
-    "rebass": "4.0.0-0",
+    "rebass": "^4.0.0",
     "remark-slug": "^5.1.2",
     "theme-ui": "^0.2.26"
   }
diff --git a/packages/preset-material/package.json b/packages/preset-material/package.json
index 61a76599..02fa41f5 100644
--- a/packages/preset-material/package.json
+++ b/packages/preset-material/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@rebass/preset-material",
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "description": "Material Design theme preset for use with Rebass",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/preset/package.json b/packages/preset/package.json
index 0a2e7359..488e4fb9 100644
--- a/packages/preset/package.json
+++ b/packages/preset/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@rebass/preset",
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "description": "Base theme preset for use with Rebass",
   "main": "dist/index.js",
   "scripts": {
diff --git a/packages/rebass/package.json b/packages/rebass/package.json
index 3826f45a..c49e0a65 100644
--- a/packages/rebass/package.json
+++ b/packages/rebass/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rebass",
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "description": "React primitive UI components built with Styled System",
   "main": "dist/index.js",
   "scripts": {
@@ -26,7 +26,7 @@
   "dependencies": {
     "@theme-ui/preset-base": "^0.2.25",
     "deepmerge": "^4.0.0",
-    "reflexbox": "4.0.0-0"
+    "reflexbox": "^4.0.0"
   },
   "repository": "rebassjs/rebass",
   "bugs": {
diff --git a/packages/reflexbox/package.json b/packages/reflexbox/package.json
index b023fd41..4ed98d95 100644
--- a/packages/reflexbox/package.json
+++ b/packages/reflexbox/package.json
@@ -1,6 +1,6 @@
 {
   "name": "reflexbox",
-  "version": "4.0.0-0",
+  "version": "4.0.0",
   "description": "Responsive React grid system built with Styled System, with support for Emotion and Styled Components",
   "main": "dist/index.js",
   "keywords": [