diff --git a/lerna.json b/lerna.json
index b53b4d06d4..01f911e844 100644
--- a/lerna.json
+++ b/lerna.json
@@ -10,5 +10,5 @@
   "packages": [
     "packages/*"
   ],
-  "version": "0.5.4"
+  "version": "0.5.5"
 }
diff --git a/package.json b/package.json
index 3d466b4c0f..653bbab4d1 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-wrapper",
-  "version": "0.5.4",
+  "version": "0.5.5",
   "description": "Non-published, see packages/",
   "keywords": [],
   "author": "Jaco Greeff <jacogr@gmail.com>",
diff --git a/packages/api-format/package.json b/packages/api-format/package.json
index 1349659c37..a81d6ce060 100644
--- a/packages/api-format/package.json
+++ b/packages/api-format/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-format",
-  "version": "0.5.4",
+  "version": "0.5.5",
   "description": "Input/Output formatters for JsonRPC exchange",
   "main": "index.js",
   "keywords": [
@@ -30,7 +30,7 @@
     "test": "echo \"Tests only available from root wrapper\""
   },
   "devDependencies": {
-    "@polkadot/api-jsonrpc": "^0.5.4"
+    "@polkadot/api-jsonrpc": "^0.5.5"
   },
   "dependencies": {
     "@polkadot/util": "^0.5.19",
diff --git a/packages/api-jsonrpc/package.json b/packages/api-jsonrpc/package.json
index 5a2b7782ec..78ebef8735 100644
--- a/packages/api-jsonrpc/package.json
+++ b/packages/api-jsonrpc/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-jsonrpc",
-  "version": "0.5.4",
+  "version": "0.5.5",
   "description": "Method definitions for the Polkadot RPC layer",
   "main": "index.js",
   "engines": {
@@ -29,7 +29,6 @@
     "check": "eslint src && flow check",
     "test": "echo \"Tests only available from root wrapper\""
   },
-  "devDependencies": {},
   "dependencies": {
     "babel-runtime": "^6.26.0"
   }
diff --git a/packages/api-provider/package.json b/packages/api-provider/package.json
index 2820314e8e..e63af7f3d6 100644
--- a/packages/api-provider/package.json
+++ b/packages/api-provider/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api-provider",
-  "version": "0.5.4",
+  "version": "0.5.5",
   "description": "Transport providers for the API",
   "main": "index.js",
   "keywords": [
diff --git a/packages/api/package.json b/packages/api/package.json
index a82f5b7ce4..cea5ef05a9 100644
--- a/packages/api/package.json
+++ b/packages/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@polkadot/api",
-  "version": "0.5.4",
+  "version": "0.5.5",
   "description": "A JavaScript wrapper for the Polkadot JsonRPC interface",
   "main": "index.js",
   "keywords": [
@@ -29,11 +29,10 @@
     "check": "eslint src && flow check",
     "test": "echo \"Tests only available from root wrapper\""
   },
-  "devDependencies": {},
   "dependencies": {
-    "@polkadot/api-format": "^0.5.4",
-    "@polkadot/api-jsonrpc": "^0.5.4",
-    "@polkadot/api-provider": "^0.5.4",
+    "@polkadot/api-format": "^0.5.5",
+    "@polkadot/api-jsonrpc": "^0.5.5",
+    "@polkadot/api-provider": "^0.5.5",
     "@polkadot/util": "^0.5.19",
     "babel-runtime": "^6.26.0"
   }
diff --git a/yarn.lock b/yarn.lock
index 196041a1f2..596d904578 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -54,9 +54,9 @@
     lodash "^4.2.0"
     to-fast-properties "^2.0.0"
 
-"@polkadot/dev@^0.9.1":
-  version "0.9.1"
-  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.9.1.tgz#140a32eb7434003792be1abf2a676b6150b42c05"
+"@polkadot/dev@^0.9.9":
+  version "0.9.9"
+  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.9.9.tgz#b302ba6728a5068c7bffe069fd64290c227d317c"
   dependencies:
     babel-cli "^6.26.0"
     babel-core "^6.26.0"
@@ -89,44 +89,9 @@
     stylelint "^8.2.0"
     stylelint-config-standard "^18.0.0"
 
-"@polkadot/dev@^0.9.8":
-  version "0.9.8"
-  resolved "https://registry.yarnpkg.com/@polkadot/dev/-/dev-0.9.8.tgz#677e1901c9dada05e9323feb0dc3b2f425527b2f"
-  dependencies:
-    babel-cli "^6.26.0"
-    babel-core "^6.26.0"
-    babel-eslint "^8.0.2"
-    babel-plugin-transform-class-properties "^6.24.1"
-    babel-plugin-transform-flow-strip-types "^6.22.0"
-    babel-plugin-transform-object-rest-spread "^6.26.0"
-    babel-plugin-transform-runtime "^6.23.0"
-    babel-preset-env "^1.6.1"
-    babel-preset-flow "^6.23.0"
-    babel-preset-stage-0 "^6.24.1"
-    coveralls "^3.0.0"
-    dox "^0.9.0"
-    eslint "^4.11.0"
-    eslint-config-semistandard "^11.0.0"
-    eslint-config-standard "^10.2.1"
-    eslint-config-standard-react "^5.0.0"
-    eslint-plugin-flowtype "^2.39.1"
-    eslint-plugin-import "^2.8.0"
-    eslint-plugin-node "^5.2.1"
-    eslint-plugin-promise "^3.6.0"
-    eslint-plugin-react "^7.4.0"
-    eslint-plugin-standard "^3.0.1"
-    flow-bin "^0.59.0"
-    flow-copy-source "^1.2.1"
-    jest "^21.2.1"
-    makeshift "^1.1.0"
-    mkdirp "^0.5.1"
-    rimraf "^2.6.2"
-    stylelint "^8.2.0"
-    stylelint-config-standard "^18.0.0"
-
-"@polkadot/util@^0.5.15":
-  version "0.5.15"
-  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.5.15.tgz#0e1ef0cec9699fd9c9ec1a324eefd074fcb423a5"
+"@polkadot/util@^0.5.19":
+  version "0.5.19"
+  resolved "https://registry.yarnpkg.com/@polkadot/util/-/util-0.5.19.tgz#e34d917f3fd52b98c6a7633e534f26d182e7cb6f"
   dependencies:
     babel-runtime "^6.26.0"
     bn.js "^4.11.8"