diff --git a/chromeos/config/chromeos_version.sh b/chromeos/config/chromeos_version.sh
index a90c9f1..d33e8db 100755
--- a/chromeos/config/chromeos_version.sh
+++ b/chromeos/config/chromeos_version.sh
@@ -15,7 +15,7 @@
 if [ -z "${FLAGS_version}" ]; then
   # Release Build number.
   # Increment by 1 for every release build.
-  export CHROMEOS_BUILD=4978
+  export CHROMEOS_BUILD=4979
 
   # Release Branch number.
   # Increment by 1 for every release build on a branch.