diff --git a/YOLO/requirements.txt b/YOLO/requirements.txt
index 5c4a38d..aceaff4 100644
--- a/YOLO/requirements.txt
+++ b/YOLO/requirements.txt
@@ -11,7 +11,7 @@ Markdown==3.1.1
 numpy==1.18.1
 opencv-contrib-python==4.1.2.30
 opt-einsum==3.1.0
-protobuf==3.11.2
+protobuf==3.15.0
 PyYAML==5.3
 scipy==1.4.1
 six==1.14.0
diff --git a/requirements.txt b/requirements.txt
index 0ad603a..d1f5357 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -64,7 +64,7 @@ plac==1.1.3
 preshed==3.0.2
 prometheus-client==0.8.0
 prompt-toolkit==3.0.5
-protobuf==3.12.2
+protobuf==3.15.0
 ptyprocess==0.6.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8