diff --git a/adversarial_robustness/requirements.txt b/adversarial_robustness/requirements.txt
index 8e3dcd53..1936d95d 100644
--- a/adversarial_robustness/requirements.txt
+++ b/adversarial_robustness/requirements.txt
@@ -41,7 +41,7 @@ opt-einsum==3.3.0
 Pillow==8.2.0
 pkg-resources==0.0.0
 promise==2.3
-protobuf==3.17.3
+protobuf==4.25.8
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 PyYAML==5.4.1