diff --git a/README.md b/README.md
index 8cda96b6..c2fb8458 100755
--- a/README.md
+++ b/README.md
@@ -36,6 +36,10 @@ _libvips_ can take advantage of [liborc](http://code.entropywave.com/orc/) if pr
 
 	brew install homebrew/science/vips --with-webp --with-graphicsmagick
 
+A missing or incorrectly configured _Xcode Command Line Tools_ installation [can lead](https://github.com/lovell/sharp/issues/80) to a `library not found for -ljpeg` error. If so, please try:
+
+	xcode-select --install
+
 The _gettext_ dependency of _libvips_ [can lead](https://github.com/lovell/sharp/issues/9) to a `library not found for -lintl` error. If so, please try:
 
 	brew link gettext --force
diff --git a/package.json b/package.json
index 40d1b5ab..2439f80e 100755
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   ],
   "dependencies": {
     "nan": "^1.3.0",
-    "bluebird": "^2.2.2"
+    "bluebird": "^2.3.0"
   },
   "devDependencies": {
     "imagemagick": "^0.1.3",