diff --git a/demo/package.json b/demo/package.json
index 79200d3..16690da 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -7,7 +7,7 @@
     "test": "echo \"Error: no test specified\" && exit 1",
     "watch": "watchify browser.js -d -v -o bundle.js",
     "start": "http-server -p 3000 .",
-    "dist": "browserify browser.js -d > bundle.min.js",
+    "dist": "browserify browser.js -d | uglifyjs --source-map content=inline,url=bundle.min.js.map -c unused=false -o bundle.min.js",
     "_babel_disabled": " | babel -s inline -f bundle.min.js --presets env",
     "_uglify_disabled": " | uglifyjs --source-map content=inline,url=bundle.min.js.map --compress -o bundle.min.js"
   },
diff --git a/package.json b/package.json
index 1e4223e..327a143 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
     "libp2p-tcp": "^0.12.0"
   },
   "dependencies": {
-    "async": "^2.6.0",
+    "async": "^2.6.1",
     "debug": "^3.1.0",
     "libp2p-websockets": "^0.12.0",
     "mafmt": "^6.0.0",
diff --git a/server/package.json b/server/package.json
index 1eeb45f..6cf65a4 100644
--- a/server/package.json
+++ b/server/package.json
@@ -24,7 +24,7 @@
   "license": "MIT",
   "dependencies": {
     "debug": "^3.1.0",
-    "greenlock": "~2.2.16",
+    "greenlock": "~2.2.19",
     "le-acme-core": "^2.1.3",
     "le-store-certbot": "github:mkg20001/le-store-certbot",
     "libp2p": "^0.20.4",