diff --git a/contrib/dist/tor.service.in b/contrib/dist/tor.service.in
index 57409a7b0a..63628553dd 100644
--- a/contrib/dist/tor.service.in
+++ b/contrib/dist/tor.service.in
@@ -16,8 +16,7 @@ LimitNOFILE = 32768
 
 # Hardening
 PrivateTmp = yes
-DeviceAllow = /dev/null rw
-DeviceAllow = /dev/urandom r
+PrivateDevices = yes
 InaccessibleDirectories = /home
 ReadOnlyDirectories = /
 ReadWriteDirectories = @LOCALSTATEDIR@/lib/tor