diff --git a/src/node/sys/Dockerfile b/src/node/sys/Dockerfile
index 3562050..3996d83 100644
--- a/src/node/sys/Dockerfile
+++ b/src/node/sys/Dockerfile
@@ -29,7 +29,7 @@ FROM ubuntu:14.04.5
 MAINTAINER Andy <flyandi@yahoo.com>
 
 # Configuration
-ENV NODE_VERSION=6.0.0
+ENV NODE_VERSION=6.6.0
 
 # Setup Enviroment Variables
 WORKDIR /armv7l
diff --git a/src/node/sys/build.sh b/src/node/sys/build.sh
index 8fe0cb9..d1ec90e 100755
--- a/src/node/sys/build.sh
+++ b/src/node/sys/build.sh
@@ -31,9 +31,16 @@
 # Build container
 docker build -t casdk-node .
 
+# Cleanup
+if [ -f ../dist/node ]; then
+    rm ../dist/node
+fi
+
 # Make folder
 mkdir -p ../dist
 
+# remove
+
 # Copy release binary
 docker run --rm --entrypoint cat casdk-node /armv7l/latest/node > ../dist/node