diff --git a/units/systemd-portabled.service.in b/units/systemd-portabled.service.in
index cad2830b64..d22f234271 100644
--- a/units/systemd-portabled.service.in
+++ b/units/systemd-portabled.service.in
@@ -20,6 +20,7 @@ ExecStart={{LIBEXECDIR}}/systemd-portabled
 BusName=org.freedesktop.portable1
 CapabilityBoundingSet=CAP_KILL CAP_SYS_PTRACE CAP_SYS_ADMIN CAP_SETGID CAP_SYS_CHROOT CAP_DAC_READ_SEARCH CAP_DAC_OVERRIDE CAP_CHOWN CAP_FOWNER CAP_FSETID CAP_MKNOD
 MemoryDenyWriteExecute=yes
+NoNewPrivileges=yes
 ProtectHostname=yes
 ProtectKernelLogs=yes
 RestrictRealtime=yes
diff --git a/units/user/systemd-portabled.service.in b/units/user/systemd-portabled.service.in
index 61aa85ef89..b0a64f20ff 100644
--- a/units/user/systemd-portabled.service.in
+++ b/units/user/systemd-portabled.service.in
@@ -16,6 +16,7 @@ Documentation=man:org.freedesktop.portable1(5)
 ExecStart={{LIBEXECDIR}}/systemd-portabled --user
 BusName=org.freedesktop.portable1
 MemoryDenyWriteExecute=yes
+NoNewPrivileges=yes
 RestrictRealtime=yes
 RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6
 SystemCallFilter=@system-service @mount