diff --git a/lerna.json b/lerna.json
index 61e8a546..fbb0205d 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,5 +1,5 @@
 {
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "npmClient": "yarn",
   "useWorkspaces": true,
   "packages": [
diff --git a/packages/@integration/package.json b/packages/@integration/package.json
index 28e6631e..b6be80a4 100644
--- a/packages/@integration/package.json
+++ b/packages/@integration/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/integration",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Marble.js integration tests",
   "main": "src/index.ts",
   "scripts": {
@@ -25,15 +25,15 @@
   },
   "homepage": "https://github.com/marblejs/marble#readme",
   "dependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3",
-    "@marblejs/middleware-body": "^4.0.0-rc.3",
-    "@marblejs/middleware-cors": "^4.0.0-rc.3",
-    "@marblejs/middleware-io": "^4.0.0-rc.3",
-    "@marblejs/middleware-logger": "^4.0.0-rc.3",
-    "@marblejs/middleware-multipart": "^4.0.0-rc.3",
-    "@marblejs/testing": "^4.0.0-rc.3",
-    "@marblejs/websockets": "^4.0.0-rc.3",
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0",
+    "@marblejs/middleware-body": "^4.0.0",
+    "@marblejs/middleware-cors": "^4.0.0",
+    "@marblejs/middleware-io": "^4.0.0",
+    "@marblejs/middleware-logger": "^4.0.0",
+    "@marblejs/middleware-multipart": "^4.0.0",
+    "@marblejs/testing": "^4.0.0",
+    "@marblejs/websockets": "^4.0.0",
     "@types/node": "^10.1.2",
     "fp-ts": "^2.8.2",
     "rxjs": "^7.1.0",
diff --git a/packages/core/package.json b/packages/core/package.json
index b377ed4d..7706cbd9 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/core",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Reactive Node APIs made easy",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/http/package.json b/packages/http/package.json
index 71c78a37..f32a6dc6 100644
--- a/packages/http/package.json
+++ b/packages/http/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/http",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "HTTP module for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -46,7 +46,7 @@
     "uuid": "^7.0.1"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
+    "@marblejs/core": "^4.0.0",
     "@types/file-type": "^5.2.1",
     "@types/mime": "^2.0.1"
   },
diff --git a/packages/messaging/package.json b/packages/messaging/package.json
index f1e1f559..23adfbad 100644
--- a/packages/messaging/package.json
+++ b/packages/messaging/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/messaging",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Messaging module for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -38,8 +38,8 @@
     "chalk": "~2.4.1"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/middleware-io": "^4.0.0-rc.3",
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/middleware-io": "^4.0.0",
     "@types/amqp-connection-manager": "^2.0.4",
     "@types/amqplib": "^0.5.11",
     "@types/redis": "^2.8.14",
diff --git a/packages/middleware-body/package.json b/packages/middleware-body/package.json
index 00ee2bdf..63c98659 100644
--- a/packages/middleware-body/package.json
+++ b/packages/middleware-body/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-body",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Body parser middleware for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -44,8 +44,8 @@
     "type-is": "~1.6.16"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3"
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/middleware-cors/package.json b/packages/middleware-cors/package.json
index fccabcf1..3c903ab1 100644
--- a/packages/middleware-cors/package.json
+++ b/packages/middleware-cors/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-cors",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "A CORS middleware for Marble.js",
   "main": "dist/index.js",
   "types": "./dist/index.d.ts",
@@ -43,8 +43,8 @@
     "rxjs": "^7.1.0"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3"
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/middleware-io/package.json b/packages/middleware-io/package.json
index 8c23a1a7..3df432c2 100644
--- a/packages/middleware-io/package.json
+++ b/packages/middleware-io/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-io",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "IO middleware for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -40,8 +40,8 @@
     "io-ts": "^2.2.10"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3"
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/middleware-logger/package.json b/packages/middleware-logger/package.json
index 16179438..913cd2a6 100644
--- a/packages/middleware-logger/package.json
+++ b/packages/middleware-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-logger",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Logger middleware for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -39,8 +39,8 @@
     "chalk": "^2.4.1"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3",
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0",
     "@types/chalk": "^2.2.0"
   },
   "publishConfig": {
diff --git a/packages/middleware-multipart/package.json b/packages/middleware-multipart/package.json
index eaf65976..1a374ee7 100644
--- a/packages/middleware-multipart/package.json
+++ b/packages/middleware-multipart/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-multipart",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "A multipart/form-data middleware for Marble.js",
   "main": "dist/index.js",
   "types": "./dist/index.d.ts",
@@ -47,9 +47,9 @@
     "rxjs": "^7.1.0"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3",
-    "@marblejs/testing": "^4.0.0-rc.3",
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0",
+    "@marblejs/testing": "^4.0.0",
     "@types/form-data": "^2.5.0",
     "form-data": "^3.0.0"
   },
diff --git a/packages/testing/package.json b/packages/testing/package.json
index 965af25e..070f18cc 100644
--- a/packages/testing/package.json
+++ b/packages/testing/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/testing",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Testing module for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -38,10 +38,10 @@
     "rxjs": "^7.1.0"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3",
-    "@marblejs/messaging": "^4.0.0-rc.3",
-    "@marblejs/websockets": "^4.0.0-rc.3"
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0",
+    "@marblejs/messaging": "^4.0.0",
+    "@marblejs/websockets": "^4.0.0"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/websockets/package.json b/packages/websockets/package.json
index 6fb7b021..03a8f40b 100644
--- a/packages/websockets/package.json
+++ b/packages/websockets/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/websockets",
-  "version": "4.0.0-rc.3",
+  "version": "4.0.0",
   "description": "Websockets module for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -40,8 +40,8 @@
     "ws": "~7.4.6"
   },
   "devDependencies": {
-    "@marblejs/core": "^4.0.0-rc.3",
-    "@marblejs/http": "^4.0.0-rc.3"
+    "@marblejs/core": "^4.0.0",
+    "@marblejs/http": "^4.0.0"
   },
   "publishConfig": {
     "access": "public"