diff --git a/package.json b/package.json
index d0d9f790..bb369eac 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
   "devDependencies": {
     "archiver": "^3.0.0",
     "codemirror": "^5.41.0",
+    "dropbox": "^4.0.13",
     "endent": "^1.2.0",
     "eslint": "^5.9.0",
     "fs-extra": "^7.0.1",
@@ -21,7 +22,8 @@
     "updates": "^5.1.2",
     "usercss-meta": "^0.8.3",
     "web-ext": "^2.9.2",
-    "webext-tx-fix": "^0.3.1"
+    "webext-tx-fix": "^0.3.1",
+    "zipjs-browserify": "^1.0.1"
   },
   "scripts": {
     "lint": "eslint **/*.js --cache || exit 0",
diff --git a/sync/compress-text.js b/sync/compress-text.js
index 8ecefe8c..b4829b22 100644
--- a/sync/compress-text.js
+++ b/sync/compress-text.js
@@ -3,7 +3,7 @@
 'use strict';
 
 onDOMready().then(() => {
-  zip.workerScriptsPath = '../vendor/zipjs/';
+  zip.workerScriptsPath = '../vendor/zipjs-browserify/';
 });
 
 /**
diff --git a/tools/update-libraries.js b/tools/update-libraries.js
index 30f8c7c3..9a14f4ec 100644
--- a/tools/update-libraries.js
+++ b/tools/update-libraries.js
@@ -11,6 +11,9 @@ const files = {
     '*', // only update existing vendor files
     'theme' // update all theme files
   ],
+  'dropbox': [
+    'dist/Dropbox-sdk.js → dropbox-sdk.js'
+  ],
   'jsonlint': [
     'lib/jsonlint.js → jsonlint.js'
   ],
@@ -31,6 +34,12 @@ const files = {
   ],
   'usercss-meta': [
     'dist/usercss-meta.min.js → usercss-meta.min.js'
+  ],
+  'zipjs-browserify': [
+    'vendor/deflate.js → deflate.js',
+    'vendor/inflate.js → inflate.js',
+    'vendor/z-worker.js → z-worker.js',
+    'vendor/zip.js → zip.js'
   ]
 };
 
diff --git a/vendor/dropbox/README.md b/vendor/dropbox/README.md
new file mode 100644
index 00000000..2a6971f8
--- /dev/null
+++ b/vendor/dropbox/README.md
@@ -0,0 +1,12 @@
+## Dropbox SDK v4.0.13
+
+Dropbox DSK JS installed via npm - source repo:
+
+https://github.com/dropbox/dropbox-sdk-js/tree/v4.0.13
+
+The source repo **does not** include the `dist` folder with the generated `dropbox-sdk.js`
+distribution file. It can only be obtained from the npm `node_modules` folder after installing
+the module.
+
+- https://www.npmjs.com/package/dropbox
+- https://github.com/dropbox/dropbox-sdk-js/releases
diff --git a/vendor/zipjs/LICENSE b/vendor/zipjs-browserify/LICENSE
similarity index 100%
rename from vendor/zipjs/LICENSE
rename to vendor/zipjs-browserify/LICENSE
diff --git a/vendor/zipjs-browserify/README.md b/vendor/zipjs-browserify/README.md
new file mode 100644
index 00000000..d3b78f24
--- /dev/null
+++ b/vendor/zipjs-browserify/README.md
@@ -0,0 +1,8 @@
+## zipjs-browserify v1.0.1
+
+zipjs installed via npm - source repo:
+
+- https://github.com/juliangruber/zipjs-browserify/tree/v1.0.1/vendor/deflate.js
+- https://github.com/juliangruber/zipjs-browserify/tree/v1.0.1/vendor/inflate.js
+- https://github.com/juliangruber/zipjs-browserify/tree/v1.0.1/vendor/z-worker.js
+- https://github.com/juliangruber/zipjs-browserify/tree/v1.0.1/vendor/zip.js
diff --git a/vendor/zipjs/deflate.js b/vendor/zipjs-browserify/deflate.js
similarity index 100%
rename from vendor/zipjs/deflate.js
rename to vendor/zipjs-browserify/deflate.js
diff --git a/vendor/zipjs/inflate.js b/vendor/zipjs-browserify/inflate.js
similarity index 100%
rename from vendor/zipjs/inflate.js
rename to vendor/zipjs-browserify/inflate.js
diff --git a/vendor/zipjs/z-worker.js b/vendor/zipjs-browserify/z-worker.js
similarity index 100%
rename from vendor/zipjs/z-worker.js
rename to vendor/zipjs-browserify/z-worker.js
diff --git a/vendor/zipjs/zip.js b/vendor/zipjs-browserify/zip.js
similarity index 100%
rename from vendor/zipjs/zip.js
rename to vendor/zipjs-browserify/zip.js