diff --git a/vars/ubuntu.yml b/vars/ubuntu.yml
index 0082936..a2d99b0 100644
--- a/vars/ubuntu.yml
+++ b/vars/ubuntu.yml
@@ -14,6 +14,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+cache_timeout: 600
+
 congress_distro_packages:
   - git
   - libffi-dev