diff --git a/example/package.json b/example/package.json
index 67c75e8c..037248e8 100644
--- a/example/package.json
+++ b/example/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/example",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "description": "Marble.js example playground",
   "main": "src/index.ts",
   "scripts": {
@@ -23,9 +23,9 @@
   },
   "homepage": "https://github.com/marblejs/marble#readme",
   "dependencies": {
-    "@marblejs/core": "^0.4.2",
-    "@marblejs/middleware-body": "^0.4.2",
-    "@marblejs/middleware-logger": "^0.4.2",
+    "@marblejs/core": "^0.5.0",
+    "@marblejs/middleware-body": "^0.5.0",
+    "@marblejs/middleware-logger": "^0.5.0",
     "@types/node": "^10.1.2",
     "rxjs": "^6.1.0",
     "typescript": "~2.9.1"
diff --git a/lerna.json b/lerna.json
index 81cfabf9..6cbfc5e0 100644
--- a/lerna.json
+++ b/lerna.json
@@ -4,5 +4,5 @@
     "example",
     "packages/*"
   ],
-  "version": "0.4.2"
+  "version": "0.5.0"
 }
diff --git a/packages/core/package.json b/packages/core/package.json
index 6fed03f0..20469cb2 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/core",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "description": "Reactive Node APIs made easy",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
diff --git a/packages/middleware-body/package.json b/packages/middleware-body/package.json
index 713d060d..e76d45ca 100644
--- a/packages/middleware-body/package.json
+++ b/packages/middleware-body/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-body",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "description": "Body parser middleware for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -33,7 +33,7 @@
     "rxjs": "~6.1.0"
   },
   "devDependencies": {
-    "@marblejs/core": "^0.4.2"
+    "@marblejs/core": "^0.5.0"
   },
   "publishConfig": {
     "access": "public"
diff --git a/packages/middleware-joi/package.json b/packages/middleware-joi/package.json
index 6714ec38..46aa2fb3 100644
--- a/packages/middleware-joi/package.json
+++ b/packages/middleware-joi/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-joi",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "description": "A joi validation middleware for Marble.js",
   "main": "dist/index.js",
   "types": "./dist/index.d.ts",
@@ -44,8 +44,8 @@
     "joi": "^13.3.0"
   },
   "devDependencies": {
-    "@marblejs/core": "^0.4.2",
-    "@marblejs/middleware-body": "^0.4.2",
+    "@marblejs/core": "^0.5.0",
+    "@marblejs/middleware-body": "^0.5.0",
     "@types/joi": "^13.0.8"
   },
   "publishConfig": {
diff --git a/packages/middleware-logger/package.json b/packages/middleware-logger/package.json
index c74ae9e2..33689cea 100644
--- a/packages/middleware-logger/package.json
+++ b/packages/middleware-logger/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@marblejs/middleware-logger",
-  "version": "0.4.2",
+  "version": "0.5.0",
   "description": "Logger middleware for Marble.js",
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
@@ -36,7 +36,7 @@
     "chalk": "^2.4.1"
   },
   "devDependencies": {
-    "@marblejs/core": "^0.4.2",
+    "@marblejs/core": "^0.5.0",
     "@types/chalk": "^2.2.0"
   },
   "publishConfig": {