chore: release new versions

 - storybook-addon-web-components-knobs@0.3.9
 - @open-wc/testing-helpers@1.8.1
 - @open-wc/testing@2.5.15

Author: CircleCI

packages/storybook-addon-web-components-knobs/CHANGELOG.md

@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [0.3.9](https://github.com/open-wc/open-wc/compare/storybook-addon-web-components-knobs@0.3.8...storybook-addon-web-components-knobs@0.3.9) (2020-04-26)
+
+**Note:** Version bump only for package storybook-addon-web-components-knobs
+
+
+
+
+
 ## [0.3.8](https://github.com/open-wc/open-wc/compare/storybook-addon-web-components-knobs@0.3.7...storybook-addon-web-components-knobs@0.3.8) (2020-04-26)
 
 **Note:** Version bump only for package storybook-addon-web-components-knobs

packages/storybook-addon-web-components-knobs/package.json

@@ -1,6 +1,6 @@
 {
   "name": "storybook-addon-web-components-knobs",
-  "version": "0.3.8",
+  "version": "0.3.9",
   "description": "Storybook knobs for web-components based on custom-elements.json",
   "license": "MIT",
   "repository": {
@@ -30,7 +30,7 @@
     "lit-html": "^1.0.0"
   },
   "dependencies": {
-    "@open-wc/testing-helpers": "^1.8.0"
+    "@open-wc/testing-helpers": "^1.8.1"
   },
   "devDependencies": {
     "@storybook/addon-a11y": "^5.3.1",

packages/testing-helpers/CHANGELOG.md

@@ -3,6 +3,17 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [1.8.1](https://github.com/open-wc/open-wc/compare/@open-wc/testing-helpers@1.8.0...@open-wc/testing-helpers@1.8.1) (2020-04-26)
+
+
+### Bug Fixes
+
+* **testing-helpers:** constrain the type of defineCE ([#1470](https://github.com/open-wc/open-wc/issues/1470)) ([1341fa9](https://github.com/open-wc/open-wc/commit/1341fa96ad8adc83c9546cab1e1f6f62c1960322))
+
+
+
+
+
 # [1.8.0](https://github.com/open-wc/open-wc/compare/@open-wc/testing-helpers@1.7.2...@open-wc/testing-helpers@1.8.0) (2020-04-26)
 
 

packages/testing-helpers/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@open-wc/testing-helpers",
-  "version": "1.8.0",
+  "version": "1.8.1",
   "publishConfig": {
     "access": "public"
   },

packages/testing/CHANGELOG.md

@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [2.5.15](https://github.com/open-wc/open-wc/compare/@open-wc/testing@2.5.14...@open-wc/testing@2.5.15) (2020-04-26)
+
+**Note:** Version bump only for package @open-wc/testing
+
+
+
+
+
 ## [2.5.14](https://github.com/open-wc/open-wc/compare/@open-wc/testing@2.5.13...@open-wc/testing@2.5.14) (2020-04-26)
 
 

packages/testing/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@open-wc/testing",
-  "version": "2.5.14",
+  "version": "2.5.15",
   "publishConfig": {
     "access": "public"
   },
@@ -29,7 +29,7 @@
   "dependencies": {
     "@open-wc/chai-dom-equals": "^0.12.36",
     "@open-wc/semantic-dom-diff": "^0.17.9",
-    "@open-wc/testing-helpers": "^1.8.0",
+    "@open-wc/testing-helpers": "^1.8.1",
     "@types/chai": "^4.2.11",
     "@types/chai-dom": "^0.0.9",
     "@types/mocha": "^5.0.0",