diff --git a/admin/generate-dev-bundle.sh b/admin/generate-dev-bundle.sh
index 82ed80588f..2b70c958c7 100755
--- a/admin/generate-dev-bundle.sh
+++ b/admin/generate-dev-bundle.sh
@@ -3,7 +3,7 @@
 set -e
 set -u
 
-BUNDLE_VERSION=0.2.22
+BUNDLE_VERSION=0.2.23
 UNAME=$(uname)
 ARCH=$(uname -m)
 
@@ -94,7 +94,7 @@ npm install stream-buffers@0.2.3
 npm install keypress@0.1.0
 npm install sockjs@0.3.4
 npm install http-proxy@0.8.5
-npm install underscore@1.4.4
+npm install underscore@1.4.2 # 1.4.4 is a performance regression
 npm install fstream@0.1.21
 npm install tar@0.1.14
 npm install websocket@1.0.8
diff --git a/meteor b/meteor
index 195f72c91c..2f7aa3573d 100755
--- a/meteor
+++ b/meteor
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-BUNDLE_VERSION=0.2.22
+BUNDLE_VERSION=0.2.23
 
 # OS Check. Put here because here is where we download the precompiled
 # bundles that are arch specific.