diff --git a/perl-Date-Manip.spec b/perl-Date-Manip.spec
index 9a75aad..f51e4ec 100644
--- a/perl-Date-Manip.spec
+++ b/perl-Date-Manip.spec
@@ -1,37 +1,41 @@
 Name:           perl-Date-Manip
 Version:        6.83
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Date manipulation routines
 License:        GPL+ or Artistic
 URL:            https://metacpan.org/release/Date-Manip
 Source0:        https://cpan.metacpan.org/authors/id/S/SB/SBECK/Date-Manip-%{version}.tar.gz
 BuildArch:      noarch
 # Build
+BuildRequires:  coreutils
 BuildRequires:  make
-BuildRequires:  perl-interpreter
 BuildRequires:  perl-generators
+BuildRequires:  perl-interpreter
 BuildRequires:  perl(ExtUtils::MakeMaker) >= 6.76
 BuildRequires:  perl(strict)
 BuildRequires:  perl(warnings)
 # Runtime
+BuildRequires:  perl(:VERSION) >= 5.10.0
 BuildRequires:  perl(Carp)
-# XXX: BuildRequires:  perl(Cwd)
-# XXX: BuildRequires:  perl(Data::Dumper)
+# Cwd not used at tests
+BuildRequires:  perl(Data::Dumper)
 BuildRequires:  perl(Encode)
 BuildRequires:  perl(Exporter)
-# XXX: BuildRequires:  perl(File::Find)
-# XXX: BuildRequires:  perl(File::Spec)
-BuildRequires:  perl(File::Basename)
-BuildRequires:  perl(File::Find::Rule)
+# File::Find not used at tests
+# File::Spec not used at tests
 BuildRequires:  perl(integer)
 BuildRequires:  perl(IO::File)
 BuildRequires:  perl(Storable)
 BuildRequires:  perl(utf8)
+# Win32::TieRegistry not used
 # Tests only
+# File::Basename not used
+# File::Find::Rule not used
+# lib not used
 BuildRequires:  perl(Test::Inter) >= 1.09
-BuildRequires:  perl(Test::Pod) >= 1.00
-BuildRequires:  perl(Test::Pod::Coverage) >= 1.00
 BuildRequires:  perl(Test::More)
+# Test::Pod 1.00 not used
+# Test::Pod::Coverage 1.00 not used
 Requires:       perl(:MODULE_COMPAT_%(eval "$(perl -V:version)"; echo $version))
 Requires:       perl(Cwd)
 Requires:       perl(File::Find)
@@ -45,8 +49,8 @@ Obsoletes: perl-DateManip < 5.48-1
 
 %description
 Date::Manip is a series of modules designed to make any common date/time
-operation easy to do. Operations such as comparing two times, determining a
-data a given amount of time from another, or parsing international times
+operation easy to do. Operations such as comparing two times, determining
+a data a given amount of time from another, or parsing international times
 are all easily done. It deals with time as it is used in the Gregorian
 calendar (the one currently in use) with full support for time changes due
 to daylight saving time.
@@ -55,14 +59,18 @@ to daylight saving time.
 %setup -q -n Date-Manip-%{version}
 
 %build
-perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1
-make %{?_smp_mflags}
+perl Makefile.PL INSTALLDIRS=vendor NO_PACKLIST=1 NO_PERLLOCAL=1
+%{make_build}
 
 %install
-make pure_install DESTDIR=%{buildroot}
+%{make_install}
 %{_fixperms} %{buildroot}/*
 
 %check
+unset DATE_MANIP DATE_MANIP_DEBUG DATE_MANIP_DEBUG_ABBREVS \
+    DATE_MANIP_DEBUG_ZONES DATE_MANIP_TEST_DM5 OS MULTINET_TIMEZONE \
+    RELEASE_TESTING 'SYS$TIMEZONE_DIFFERENTIAL' 'SYS$TIMEZONE_NAME' \
+    'SYS$TIMEZONE_RULE' 'TCPIP$TZ' 'UCX$TZ'
 make test
 
 %files
@@ -73,6 +81,9 @@ make test
 %{_bindir}/dm_*
 
 %changelog
+* Fri Jan 15 2021 Petr Pisar <ppisar@redhat.com> - 6.83-2
+- Specify all dependendencies
+
 * Tue Dec 15 2020 Jan Pazdziora <jpazdziora@redhat.com> - 6.83-1
 - 1902872 - Rebase to upstream version 6.83.