diff --git a/Zur/OZ_SDD_old/requirements.txt b/Zur/OZ_SDD_old/requirements.txt
index 9f33e5f2..99bb65a2 100644
--- a/Zur/OZ_SDD_old/requirements.txt
+++ b/Zur/OZ_SDD_old/requirements.txt
@@ -42,7 +42,7 @@ opt-einsum==3.2.1
 Pillow==7.1.2
 portalocker==1.7.1
 progressbar2==3.51.4
-protobuf==3.11.3
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pycocotools==2.0.1