diff --git a/unum/Dockerfile b/unum/Dockerfile
index a977bc7..bf11d29 100644
--- a/unum/Dockerfile
+++ b/unum/Dockerfile
@@ -11,7 +11,7 @@
 ## WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 ## See the License for the specific language governing permissions and
 ## limitations under the License.
-FROM golang:1.8-alpine as builder
+FROM golang:1.9.2-alpine as builder
 MAINTAINER Open Networking Foundation <info@onlab.us>
 
 WORKDIR /go