diff --git a/alpha/requirements.txt b/alpha/requirements.txt
index b0a5c21..a64b1f8 100644
--- a/alpha/requirements.txt
+++ b/alpha/requirements.txt
@@ -84,7 +84,7 @@ Pillow==5.4.1
 progress==1.5
 prometheus-client==0.5.0
 prompt-toolkit==2.0.7
-protobuf==3.11.2
+protobuf==3.18.3
 psutil==5.6.3
 psycopg2==2.7.5
 ptyprocess==0.6.0
diff --git a/requirements.txt b/requirements.txt
index 255bff7..5dedf8a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -86,7 +86,7 @@ pickleshare==0.7.5
 pluggy==0.13.1
 prometheus-client==0.7.1
 prompt-toolkit==2.0.10
-protobuf==3.11.3
+protobuf==3.18.3
 psycopg2==2.8.4
 ptyprocess==0.6.0
 py==1.8.1