diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 53857383cf2..e2881720be4 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -17,6 +17,7 @@ specific language governing permissions and limitations
 under the License.
 -->
 
+// update5
 # Contributing guidelines
 
 ## Code formatting