diff --git a/requirements.txt b/requirements.txt
index f1ca512..70fbe4e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -63,7 +63,7 @@ plac==0.9.6
 preshed==2.0.1
 prometheus-client==0.7.0
 prompt-toolkit==2.0.9
-protobuf==3.8.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.4.2
 pylint==2.3.1