diff --git a/build.spec b/build.spec
index 76c044a..3a4b182 100644
--- a/build.spec
+++ b/build.spec
@@ -48,19 +48,16 @@ BuildRequires:  perl
 BuildRequires:  psmisc
 BuildRequires:  tar
 # For testcases
-BuildRequires:  perl(Date::Parse)
 BuildRequires:  perl(Test::Harness)
 BuildRequires:  perl(Test::More)
-%if 0%{?fedora}
+%if 0%{?fedora} || 0%{?centos_version}
 Requires:       perl-MD5
-Requires:       perl-TimeDate
-BuildRequires:  perl-TimeDate
+%else
+BuildRequires:  perl(Date::Parse)
 %endif
 Conflicts:      bsdtar < 2.5.5
-BuildRequires:  perl(Date::Parse)
 BuildRequires:  perl(Test::Harness)
 BuildRequires:  perl(Test::More)
-BuildRequires:  perl(YAML)
 BuildRequires:  perl(YAML::LibYAML)
 %if 0%{?suse_version} > 1000 || 0%{?centos_version} >= 800 || 0%{?rhel_version} >= 800 || 0%{?fedora_version} >= 21
 # None of them are actually required for core features.
@@ -73,7 +70,6 @@ Recommends:     perl(Time::Zone)
 Recommends:     perl(URI)
 Recommends:     perl(XML::Parser)
 Recommends:     perl(Net::SSL)
-Recommends:     perl(YAML)
 Recommends:     perl(YAML::LibYAML)
 Recommends:     bsdtar
 Recommends:     qemu-linux-user