diff --git a/lib/sbt-launch-0.7.7.jar b/lib/sbt-launch-0.7.7.jar
new file mode 100644
index 0000000..f8542fc
Binary files /dev/null and b/lib/sbt-launch-0.7.7.jar differ
diff --git a/lib/sbt-launch.jar b/lib/sbt-launch.jar
deleted file mode 100644
index 67ee369..0000000
Binary files a/lib/sbt-launch.jar and /dev/null differ
diff --git a/project/build.properties b/project/build.properties
index 7c14cce..317c12f 100644
--- a/project/build.properties
+++ b/project/build.properties
@@ -1,7 +1,7 @@
 #Project properties
 #Mon Feb 28 11:55:49 PST 2011
 project.name=Kafka
-sbt.version=0.7.5
+sbt.version=0.7.7
 project.version=0.7
 build.scala.versions=2.8.0
 contrib.root.dir=contrib
diff --git a/sbt b/sbt
index 7d8b41e..8087f93 100755
--- a/sbt
+++ b/sbt
@@ -1 +1,2 @@
-java -Xmx1024M -XX:MaxPermSize=512m -jar `dirname $0`/lib/sbt-launch.jar "$@"
+#!/bin/sh
+java -Xmx1024M -XX:MaxPermSize=512m -jar `dirname $0`/lib/sbt-launch-0.7.7.jar "$@"