diff --git a/nixos/modules/services/continuous-integration/jenkins/default.nix b/nixos/modules/services/continuous-integration/jenkins/default.nix
index 150393acccaf..2fe53e173f4f 100644
--- a/nixos/modules/services/continuous-integration/jenkins/default.nix
+++ b/nixos/modules/services/continuous-integration/jenkins/default.nix
@@ -272,6 +272,7 @@ in
         ProtectKernelLogs = true;
         ProtectKernelModules = true;
         ProtectKernelTunables = true;
+        ProtectProc = "invisible";
         ProtectSystem = "full";
         RemoveIPC = true;
         RestrictAddressFamilies = [