diff --git a/automated_detection_testing/requirements.txt b/automated_detection_testing/requirements.txt
index 84f44438a3..c49f3b5274 100644
--- a/automated_detection_testing/requirements.txt
+++ b/automated_detection_testing/requirements.txt
@@ -48,7 +48,7 @@ path.py==12.5.0
 pexpect==4.8.0
 pluggy==0.13.1
 pre-commit==2.10.0
-protobuf==3.15.1
+protobuf==3.15.6
 psutil==5.8.0
 ptyprocess==0.7.0
 py==1.10.0