diff --git a/face_detection_app/requirements.txt b/face_detection_app/requirements.txt
index db98b09..70d90ef 100644
--- a/face_detection_app/requirements.txt
+++ b/face_detection_app/requirements.txt
@@ -47,7 +47,7 @@ pickleshare==0.7.5
 Pillow>=7.1.0
 prometheus-client==0.7.1
 prompt-toolkit==3.0.3
-protobuf==3.11.3
+protobuf==3.15.0
 ptyprocess==0.6.0
 pydeck==0.2.1
 Pygments>=2.5.2