diff --git a/examples/guess-the-sketch/src/requirements.txt b/examples/guess-the-sketch/src/requirements.txt
index 467cc5b..fdf8452 100644
--- a/examples/guess-the-sketch/src/requirements.txt
+++ b/examples/guess-the-sketch/src/requirements.txt
@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-Flask==2.3.2
+Flask==3.1.3
 gunicorn==21.2.0
 Werkzeug==2.3.8
 flask-socketio==5.2.0