diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index a186b1ad..6669b9b0 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -14,9 +14,7 @@ technologies used in Etcher that you should become familiar with:
 - [NodeJS][nodejs]
 - [Redux][redux]
 - [ImmutableJS][immutablejs]
-- [Bootstrap][bootstrap]
 - [Sass][sass]
-- [Flexbox Grid][flexbox-grid]
 - [Mocha][mocha]
 - [JSDoc][jsdoc]
 
@@ -67,8 +65,6 @@ be documented instead!
 [nodejs]: https://nodejs.org
 [redux]: http://redux.js.org
 [immutablejs]: http://facebook.github.io/immutable-js/
-[bootstrap]: http://getbootstrap.com
 [sass]: http://sass-lang.com
-[flexbox-grid]: http://flexboxgrid.com
 [mocha]: http://mochajs.org
 [jsdoc]: http://usejsdoc.org
diff --git a/lib/gui/app/scss/main.scss b/lib/gui/app/scss/main.scss
index 74e6e193..e520c0b6 100644
--- a/lib/gui/app/scss/main.scss
+++ b/lib/gui/app/scss/main.scss
@@ -22,8 +22,6 @@ $btn-min-width: 170px;
 $link-color: #ddd;
 $disabled-opacity: 0.2;
 
-@import "../../../../node_modules/flexboxgrid/dist/flexboxgrid.css";
-@import "../../../../node_modules/bootstrap-sass/assets/stylesheets/bootstrap";
 @import "./modules/theme";
 @import "../pages/main/styles/main";
 @import "../pages/finish/styles/finish";
diff --git a/npm-shrinkwrap.json b/npm-shrinkwrap.json
index c4404ace..d5617014 100644
--- a/npm-shrinkwrap.json
+++ b/npm-shrinkwrap.json
@@ -4842,12 +4842,6 @@
       "dev": true,
       "optional": true
     },
-    "bootstrap-sass": {
-      "version": "3.4.1",
-      "resolved": "https://registry.npmjs.org/bootstrap-sass/-/bootstrap-sass-3.4.1.tgz",
-      "integrity": "sha512-p5rxsK/IyEDQm2CwiHxxUi0MZZtvVFbhWmyMOt4lLkA4bujDA1TGoKT0i1FKIWiugAdP+kK8T5KMDFIKQCLYIA==",
-      "dev": true
-    },
     "boxen": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/boxen/-/boxen-4.2.0.tgz",
@@ -9320,12 +9314,6 @@
         }
       }
     },
-    "flexboxgrid": {
-      "version": "6.3.1",
-      "resolved": "https://registry.npmjs.org/flexboxgrid/-/flexboxgrid-6.3.1.tgz",
-      "integrity": "sha1-6ZiYr8B7cEdyK7galYpfuk1OIP0=",
-      "dev": true
-    },
     "flush-write-stream": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/flush-write-stream/-/flush-write-stream-1.1.1.tgz",
@@ -18639,4 +18627,4 @@
       }
     }
   }
-}
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 37ef3bd9..6a3d323c 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,6 @@
     "@types/tmp": "^0.2.0",
     "@types/webpack-node-externals": "^1.7.0",
     "bluebird": "^3.7.2",
-    "bootstrap-sass": "^3.3.6",
     "chai": "^4.2.0",
     "copy-webpack-plugin": "^6.0.1",
     "css-loader": "^3.5.3",
@@ -80,7 +79,6 @@
     "electron-updater": "^4.3.2",
     "etcher-sdk": "^4.1.15",
     "file-loader": "^6.0.0",
-    "flexboxgrid": "^6.3.0",
     "husky": "^4.2.5",
     "immutable": "^3.8.1",
     "inactivity-timer": "^1.0.0",