diff --git a/setup.py b/setup.py
index 406a610..60353d4 100644
--- a/setup.py
+++ b/setup.py
@@ -41,7 +41,7 @@
     install_requires=[
         "asyncio-nats-streaming==0.4.0",
         "click==7.0",
-        "protobuf==3.8.0",
+        "protobuf==3.15.0",
     ],
     data_files=DATAFILES,
 )