diff --git a/requirements.txt b/requirements.txt
index 0c8387e..38e0c5a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -58,7 +58,7 @@ plac==0.9.6
 preshed==2.0.1
 prometheus-client==0.6.0
 prompt-toolkit==2.0.9
-protobuf==3.7.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 py4j==0.10.7
 pyarrow==0.13.0