diff --git a/src/internet-stack/wscript b/src/internet-stack/wscript
index b46151590..ba5c1d8d8 100644
--- a/src/internet-stack/wscript
+++ b/src/internet-stack/wscript
@@ -8,7 +8,7 @@ import Utils
 import Task
 
 # Required NSC version
-NSC_RELEASE_NAME = "nsc-0.5.0"
+NSC_RELEASE_NAME = "nsc-0.5.1"
 
 
 def set_options(opt):