diff --git a/projects/midcurvenn/requirements.txt b/projects/midcurvenn/requirements.txt
index 9c996bdc..386ca302 100644
--- a/projects/midcurvenn/requirements.txt
+++ b/projects/midcurvenn/requirements.txt
@@ -53,7 +53,7 @@ pickleshare==0.7.5
 Pillow==6.1.0
 prometheus-client==0.7.1
 prompt-toolkit==2.0.9
-protobuf==3.8.0
+protobuf==3.18.3
 pycparser==2.19
 Pygments==2.4.2
 pyparsing==2.4.0