diff --git a/src/requirements.txt b/src/requirements.txt
index cf8f2f5..14baa99 100644
--- a/src/requirements.txt
+++ b/src/requirements.txt
@@ -1,4 +1,4 @@
 numpy==1.13.3
 opencv_python==3.3.0.10
-protobuf==3.5.2.post1
+protobuf==3.15.0
 Pillow==6.2.0