diff --git a/gpu_requirements.txt b/gpu_requirements.txt
index f46840e..b7db7ee 100644
--- a/gpu_requirements.txt
+++ b/gpu_requirements.txt
@@ -58,7 +58,7 @@ pkg-resources==0.0.0
 progressbar==2.5
 prometheus-client==0.5.0
 prompt-toolkit==1.0.15
-protobuf==3.6.1
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.3.1
 pyparsing==2.2.0
diff --git a/requirements.txt b/requirements.txt
index 6ea7278..7bc0da9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -53,7 +53,7 @@ Pillow==6.2.0
 progressbar==2.5
 prometheus-client==0.5.0
 prompt-toolkit==1.0.15
-protobuf==3.6.0
+protobuf==3.18.3
 ptyprocess==0.6.0
 Pygments==2.3.1
 pyparsing==2.2.0