diff --git a/support/mesos-build/ubuntu-16.04.dockerfile b/support/mesos-build/ubuntu-16.04.dockerfile
index 0606170ef4a..018be686102 100644
--- a/support/mesos-build/ubuntu-16.04.dockerfile
+++ b/support/mesos-build/ubuntu-16.04.dockerfile
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM ubuntu:16.04
+FROM ubuntu:xenial-20210416
 
 # Install dependencies.
 RUN apt-get update && \