diff --git a/robustified/requirements.txt b/robustified/requirements.txt
index 92a7a74f..a772f4a9 100644
--- a/robustified/requirements.txt
+++ b/robustified/requirements.txt
@@ -36,7 +36,7 @@ opencv-python==4.2.0.34
 opt-einsum==3.2.1
 Pillow==7.1.2
 progressbar2==3.51.3
-protobuf==3.11.3
+protobuf==3.18.3
 psutil==5.7.0
 pycparser==2.20
 pyglet==1.5.5