diff --git a/hbp_nrp_watchdog/requirements.txt b/hbp_nrp_watchdog/requirements.txt
index aa7d021..5048665 100644
--- a/hbp_nrp_watchdog/requirements.txt
+++ b/hbp_nrp_watchdog/requirements.txt
@@ -1,4 +1,4 @@
-psutil==2.0.0
+psutil==5.6.6
 PyYAML==3.11
 rospkg==1.0.38
 catkin_pkg==0.2.10