diff --git a/requirements.txt b/requirements.txt
index 80e2daf..36cce84 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -82,7 +82,7 @@ plotting==0.0.4
 ply==3.11
 prometheus-client==0.7.1
 prompt-toolkit==3.0.3
-protobuf==3.9.2
+protobuf==3.18.3
 pyasn1==0.4.8
 pyasn1-modules==0.2.7
 pyAudioAnalysis==0.3.2