diff --git a/.snyk b/.snyk
index 6f34fea9..7d7a59dd 100644
--- a/.snyk
+++ b/.snyk
@@ -5,5 +5,5 @@ ignore:
   'npm:mem:20180117':
     - libnpx > yargs > os-locale > mem:
         reason: No update available
-        expires: '2019-09-15T21:34:43.636Z'
+        expires: '2019-09-16T00:24:48.037Z'
 patch: {}
diff --git a/package.json b/package.json
index e3424469..07b91a5e 100644
--- a/package.json
+++ b/package.json
@@ -104,8 +104,8 @@
     "@reactioncommerce/components-context": "~1.2.0",
     "commitlint": "^8.0.0",
     "prop-types": "~15.6.2",
-    "react": "~16.8.6",
-    "react-dom": "~16.8.6"
+    "react": "~16.9.0",
+    "react-dom": "~16.9.0"
   },
   "devDependencies": {
     "@babel/cli": "~7.2.3",
diff --git a/package/package.json b/package/package.json
index 0db13dc3..77ba0165 100644
--- a/package/package.json
+++ b/package/package.json
@@ -91,6 +91,6 @@
     "@reactioncommerce/components-context": "~1.2.0",
     "@material-ui/core": ">=4.3.2 < 5",
     "prop-types": "~15.6.2",
-    "react-dom": "~16.8.6"
+    "react-dom": "~16.9.0"
   }
 }
diff --git a/package/src/components/Button/Button.md b/package/src/components/Button/Button.md
index 7b4132da..3b493b6c 100644
--- a/package/src/components/Button/Button.md
+++ b/package/src/components/Button/Button.md
@@ -1,3 +1,7 @@
+### Overview
+
+Buttons allow users to take an action such as add, save, cancel or delete. Buttons should clearly and simply communicate the action that will happen when they are pressed.
+
 ```jsx noeditor
 <div style={{ marginBottom: "2rem", border: "1px solid #e6e6e6", padding: "1rem"}}>
   <div style={{ display: "flex", flexWrap: "wrap", justifyContent: "space-evently", marginBottom: "1rem" }}>
diff --git a/package/src/setupTests.js b/package/src/setupTests.js
index d7c2a0fb..5af5a62b 100644
--- a/package/src/setupTests.js
+++ b/package/src/setupTests.js
@@ -1,3 +1,6 @@
+// Add async/await features
+import "regenerator-runtime/runtime";
+
 // add some helpful assertions
 import "@testing-library/jest-dom/extend-expect";
 
diff --git a/package/src/theme/defaultTheme.js b/package/src/theme/defaultTheme.js
index c632c7f9..b878ca3b 100644
--- a/package/src/theme/defaultTheme.js
+++ b/package/src/theme/defaultTheme.js
@@ -46,7 +46,6 @@ export const rawMuiTheme = {
     },
     action: {
       hover: colors.reactionBlue100,
-      hoverOpacity: 1,
       selected: colors.black10
     }
   },
diff --git a/yarn.lock b/yarn.lock
index 988b1d37..00011913 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10141,14 +10141,15 @@ react-docgen@^4.1.0:
     node-dir "^0.1.10"
     recast "^0.17.3"
 
-react-dom@~16.8.6:
-  version "16.8.6"
-  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.8.6.tgz#71d6303f631e8b0097f56165ef608f051ff6e10f"
+react-dom@~16.9.0:
+  version "16.9.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.9.0.tgz#5e65527a5e26f22ae3701131bcccaee9fb0d3962"
+  integrity sha512-YFT2rxO9hM70ewk9jq0y6sQk8cL02xm4+IzYBz75CQGlClQQ1Bxq0nhHF6OtSbit+AIahujJgb/CPRibFkMNJQ==
   dependencies:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
     prop-types "^15.6.2"
-    scheduler "^0.13.6"
+    scheduler "^0.15.0"
 
 react-error-overlay@^5.1.0, react-error-overlay@^5.1.4:
   version "5.1.6"
@@ -10262,7 +10263,7 @@ react-transition-group@^4.0.0:
     loose-envify "^1.4.0"
     prop-types "^15.6.2"
 
-react@^16.0.0, react@~16.8.6:
+react@^16.0.0:
   version "16.8.6"
   resolved "https://registry.yarnpkg.com/react/-/react-16.8.6.tgz#ad6c3a9614fd3a4e9ef51117f54d888da01f2bbe"
   dependencies:
@@ -10271,6 +10272,15 @@ react@^16.0.0, react@~16.8.6:
     prop-types "^15.6.2"
     scheduler "^0.13.6"
 
+react@~16.9.0:
+  version "16.9.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.9.0.tgz#40ba2f9af13bc1a38d75dbf2f4359a5185c4f7aa"
+  integrity sha512-+7LQnFBwkiw+BobzOF6N//BdoNw0ouwmSJTEm9cglOOmsg/TMiFHZLe2sEoN5M7LgJTj9oHH0gxklfnQe66S1w==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+
 read-cmd-shim@^1.0.1, read-cmd-shim@~1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-cmd-shim/-/read-cmd-shim-1.0.1.tgz#2d5d157786a37c055d22077c32c53f8329e91c7b"
@@ -10946,6 +10956,14 @@ scheduler@^0.13.6:
     loose-envify "^1.1.0"
     object-assign "^4.1.1"
 
+scheduler@^0.15.0:
+  version "0.15.0"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.15.0.tgz#6bfcf80ff850b280fed4aeecc6513bc0b4f17f8e"
+  integrity sha512-xAefmSfN6jqAa7Kuq7LIJY0bwAPG3xlCj0HMEBQk1lxYiDKZscY2xJ5U/61ZTrYbmNQbXa+gc7czPkVo11tnCg==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+
 schema-utils@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/schema-utils/-/schema-utils-0.3.0.tgz#f5877222ce3e931edae039f17eb3716e7137f8cf"