diff --git a/snp/requirements.txt b/snp/requirements.txt
index 6f1589e..cd3aff7 100644
--- a/snp/requirements.txt
+++ b/snp/requirements.txt
@@ -45,7 +45,7 @@ pickleshare==0.7.5
 Pillow==5.3.0
 prometheus-client==0.4.2
 prompt-toolkit==2.0.7
-protobuf==3.6.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 pycurl==7.43.0
 Pygments==2.2.0