diff --git a/package.json b/package.json
index 7d73a4e71..38641d1d6 100644
--- a/package.json
+++ b/package.json
@@ -105,13 +105,13 @@
     "redux-throttle": "0.1.1",
     "rimraf": "^2.6.1",
     "scratch-audio": "0.1.0-prerelease.20190114210212",
-    "scratch-blocks": "0.1.0-prerelease.1549990124",
+    "scratch-blocks": "0.1.0-prerelease.1551865183",
     "scratch-l10n": "3.1.20190220143732",
     "scratch-paint": "0.2.0-prerelease.20190114205252",
     "scratch-render": "0.1.0-prerelease.20190213183713",
     "scratch-storage": "1.2.2",
     "scratch-svg-renderer": "0.2.0-prerelease.20190304180800",
-    "scratch-vm": "0.2.0-prerelease.20190226023539",
+    "scratch-vm": "0.2.0-prerelease.20190306171051",
     "selenium-webdriver": "3.6.0",
     "startaudiocontext": "1.2.1",
     "style-loader": "^0.23.0",
diff --git a/src/components/connection-modal/icons/scratchlink.svg b/src/components/connection-modal/icons/scratchlink.svg
index de2011a5e..704180653 100644
--- a/src/components/connection-modal/icons/scratchlink.svg
+++ b/src/components/connection-modal/icons/scratchlink.svg
@@ -1,34 +1,41 @@
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+	.st0{fill:#0FBD8C;}
+	.st1{fill:#FFFFFF;}
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+<desc>Created with Sketch.</desc>
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diff --git a/src/lib/libraries/extensions/boost-small.svg b/src/lib/libraries/extensions/boost-small.svg
new file mode 100644
index 000000000..df39e8e0b
--- /dev/null
+++ b/src/lib/libraries/extensions/boost-small.svg
@@ -0,0 +1 @@
+<svg width="40" height="40" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><path stroke="#7C87A5" fill="#FFF" stroke-linecap="round" stroke-linejoin="round" d="M1 12h38v16H1z"/><path stroke="#E6E7E8" fill="#E6E7E8" stroke-linecap="round" stroke-linejoin="round" d="M16 12v2h1v-1h2v1h1v-2z"/><path d="M14.5 12H22" stroke="#7C87A5" stroke-linecap="square"/><path stroke="#7C87A5" fill="#FFF" stroke-linecap="round" stroke-linejoin="round" d="M1 16h19v6h4v4h-4v2H1z"/><path stroke="#7C87A5" fill="#E6E7E8" stroke-linecap="round" stroke-linejoin="round" d="M1 26h38v2H1zM1 19h9l3 3h4v4H1z"/><circle fill="#FF661A" cx="4.5" cy="22.5" r="1.5"/><circle fill="#7C87A5" cx="22" cy="24" r="1"/><path stroke="#7C87A5" fill="#FFF" stroke-linecap="round" stroke-linejoin="round" d="M29 22h10v4H29z"/><circle fill="#7C87A5" cx="31" cy="24" r="1"/><circle fill="#7C87A5" cx="34" cy="24" r="1"/><circle fill="#7C87A5" cx="37" cy="24" r="1"/><g stroke="#7C87A5" stroke-linecap="round" stroke-linejoin="round"><path d="M3 16v-.5M5 16v-.5M7 16v-.5M9 16v-.5M11 16v-.5M13 16v-.5"/></g><g stroke="#7C87A5" stroke-linecap="round" stroke-linejoin="round"><path d="M21 22v-.5M23 22v-.5"/></g><g stroke="#7C87A5" stroke-linecap="round" stroke-linejoin="round"><path d="M3 12v-.5M5 12v-.5M7 12v-.5M9 12v-.5M11 12v-.5M13 12v-.5"/></g><g stroke="#7C87A5" stroke-linecap="round" stroke-linejoin="round"><path d="M28 12v-.5M26 12v-.5M24 12v-.5M30 12v-.5M32 12v-.5M34 12v-.5M36 12v-.5M38 12v-.5"/></g><g stroke="#7C87A5" stroke-linecap="round" stroke-linejoin="round"><path d="M31 22v-.5M33 22v-.5M35 22v-.5M37 22v-.5"/></g></g></svg>
\ No newline at end of file
diff --git a/src/lib/libraries/extensions/boost.png b/src/lib/libraries/extensions/boost.png
old mode 100644
new mode 100755
index 32236443e..0546b015c
Binary files a/src/lib/libraries/extensions/boost.png and b/src/lib/libraries/extensions/boost.png differ
diff --git a/src/lib/libraries/extensions/index.jsx b/src/lib/libraries/extensions/index.jsx
index 6517473db..9bc3bc3d2 100644
--- a/src/lib/libraries/extensions/index.jsx
+++ b/src/lib/libraries/extensions/index.jsx
@@ -16,6 +16,8 @@ import text2speechImage from './text2speech.png';
 import text2speechInsetImage from './text2speech-small.svg';
 import makeymakeyImage from './makeymakey.png';
 import makeymakeyInsetImage from './makeymakey-small.svg';
+import boostImage from './boost.png';
+import boostInsetImage from './boost-small.svg';
 
 import microbitPeripheralImage from './peripheral-connection/microbit/microbit-illustration.svg';
 import microbitMenuImage from './peripheral-connection/microbit/microbit-small.svg';
@@ -232,6 +234,22 @@ export default [
             />
         ),
         helpLink: 'https://scratch.mit.edu/wedo'
-
+    },
+    {
+        name: 'LEGO BOOST',
+        extensionId: 'boost',
+        collaborator: 'LEGO',
+        iconURL: boostImage,
+        insetIconURL: boostInsetImage,
+        description: (
+            <FormattedMessage
+                defaultMessage="Bring robotic creations to life."
+                description="Description for the 'LEGO BOOST' extension"
+                id="gui.extension.boost.description"
+            />
+        ),
+        featured: true,
+        disabled: true,
+        bluetoothRequired: true
     }
 ];
diff --git a/webpack.config.js b/webpack.config.js
index 4618d5e41..9486680d1 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -36,7 +36,11 @@ const base = {
         rules: [{
             test: /\.jsx?$/,
             loader: 'babel-loader',
-            include: [path.resolve(__dirname, 'src'), /node_modules[\\/]scratch-[^\\/]+[\\/]src/],
+            include: [
+                path.resolve(__dirname, 'src'),
+                /node_modules[\\/]scratch-[^\\/]+[\\/]src/,
+                /node_modules[\\/]pify/
+            ],
             options: {
                 // Explicitly disable babelrc so we don't catch various config
                 // in much lower dependencies.