diff --git a/arpwatch.spec b/arpwatch.spec
index d32f812..26bc622 100644
--- a/arpwatch.spec
+++ b/arpwatch.spec
@@ -10,11 +10,11 @@ Group: Applications/System
 License: BSD with advertising
 URL: http://ee.lbl.gov/
 Requires(pre): shadow-utils 
-Requires(post): systemd-units
-Requires(preun): systemd-units
-Requires(postun): systemd-units
+Requires(post): systemd
+Requires(preun): systemd
+Requires(postun): systemd
 Requires: /usr/sbin/sendmail
-BuildRequires: /usr/sbin/sendmail libpcap-devel systemd-devel
+BuildRequires: /usr/sbin/sendmail libpcap-devel systemd
 
 Source0: ftp://ftp.ee.lbl.gov/arpwatch-%{version}.tar.gz
 Source1: arpwatch.service