diff --git a/requirements.txt b/requirements.txt
index 298c429..ce3bfcc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 # Same as in setup.py
 grpclib==0.3.1
-protobuf==3.12.0
\ No newline at end of file
+protobuf==3.18.3
\ No newline at end of file