diff --git a/requirements.txt b/requirements.txt
index 2076535..fd9f3fa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ Jinja2==2.11.2
 MarkupSafe==1.1.1
 numpy==1.18.5
 Pillow==7.1.2
-protobuf==3.12.2
+protobuf==3.15.0
 pycparser==2.20
 requests==2.23.0
 six==1.15.0