diff --git a/trace/cloud-trace-demo-app/app/Dockerfile b/trace/cloud-trace-demo-app/app/Dockerfile
index 400b749e4f8..62ac660dad3 100644
--- a/trace/cloud-trace-demo-app/app/Dockerfile
+++ b/trace/cloud-trace-demo-app/app/Dockerfile
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-FROM python:3.9.6
+FROM python:3.13.11
 
 RUN pip3 install --upgrade pip