diff --git a/perl-IO-Multiplex.spec b/perl-IO-Multiplex.spec
index fbf2908..d193009 100644
--- a/perl-IO-Multiplex.spec
+++ b/perl-IO-Multiplex.spec
@@ -1,15 +1,17 @@
 Summary:	Manage IO on many file handles
 Name:		perl-IO-Multiplex
 Version:	1.16
-Release:	17%{?dist}
+Release:	18%{?dist}
 License:	GPL+ or Artistic
 URL:		https://metacpan.org/release/IO-Multiplex
-Source0:	https://cpan.metacpan.org/authors/id/B/BB/BBB/IO-Multiplex-%{version}.tar.gz
+Source0:	https://cpan.metacpan.org/modules/by-module/IO/IO-Multiplex-%{version}.tar.gz
 BuildArch:	noarch
 # Module Build
-BuildRequires: make
-BuildRequires:	perl-interpreter
+BuildRequires:	coreutils
+BuildRequires:	findutils
+BuildRequires:	make
 BuildRequires:	perl-generators
+BuildRequires:	perl-interpreter
 BuildRequires:	perl(ExtUtils::MakeMaker)
 # Module Runtime
 BuildRequires:	perl(Carp)
@@ -46,10 +48,9 @@ perl Makefile.PL INSTALLDIRS=vendor
 make %{?_smp_mflags}
 
 %install
-rm -rf %{buildroot}
 make pure_install DESTDIR=%{buildroot}
-find %{buildroot} -type f -name .packlist -exec rm -f {} ';'
-%{_fixperms} %{buildroot}
+find %{buildroot} -type f -name .packlist -delete
+%{_fixperms} -c %{buildroot}
 
 %check
 make test
@@ -60,6 +61,14 @@ make test
 %{_mandir}/man3/IO::Multiplex.3*
 
 %changelog
+* Fri Jan  8 2021 Paul Howarth <paul@city-fan.org> - 1.16-18
+- Spec tidy-up
+  - Use author-independent source URL
+  - Specify all build dependencies
+  - Drop redundant buildroot cleaning in %%install section
+  - Simplify find command using -delete
+  - Fix permissions verbosely
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.16-17
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild