diff --git a/knot-3.1.4.tar.xz b/knot-3.1.4.tar.xz
deleted file mode 100644
index c8f7bc8..0000000
--- a/knot-3.1.4.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:05ebca053b4ce62205a095b6885ed1a1167c629ccac2b3c8dcc431bd2deedf70
-size 1408656
diff --git a/knot-3.1.4.tar.xz.asc b/knot-3.1.4.tar.xz.asc
deleted file mode 100644
index 1ec4df8..0000000
--- a/knot-3.1.4.tar.xz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
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diff --git a/knot-3.1.5.tar.xz b/knot-3.1.5.tar.xz
new file mode 100644
index 0000000..83af98a
--- /dev/null
+++ b/knot-3.1.5.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:2da6e50b0662297d55f80e349568224e07fe88cad20bee1d2e22f54bb32da064
+size 1414500
diff --git a/knot-3.1.5.tar.xz.asc b/knot-3.1.5.tar.xz.asc
new file mode 100644
index 0000000..6f733e5
--- /dev/null
+++ b/knot-3.1.5.tar.xz.asc
@@ -0,0 +1,16 @@
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diff --git a/knot.changes b/knot.changes
index e7ce98a..c23324d 100644
--- a/knot.changes
+++ b/knot.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Mon Dec 20 19:49:42 UTC 2021 - Michal Hrusecky <michal.hrusecky@opensuse.org>
+
+- drop conditions for openSUSE 13 and older 
+- knot.conf is owned by knot as is it's parent directory 
+
+-------------------------------------------------------------------
+Mon Dec 20 19:34:16 UTC 2021 - Michal Hrusecky <michal.hrusecky@opensuse.org>
+
+- update to version 3.1.5, see:
+  https://www.knot-dns.cz/2021-12-20-version-315.html
+
 -------------------------------------------------------------------
 Thu Nov  4 19:43:56 UTC 2021 - Michal Hrusecky <michal.hrusecky@opensuse.org>
 
diff --git a/knot.spec b/knot.spec
index 666eea2..b9b7baa 100644
--- a/knot.spec
+++ b/knot.spec
@@ -20,35 +20,22 @@
 %define libknot     libknot12
 %define libzscanner libzscanner4
 %define pkg_name knot
-%if 0%{?suse_version} > 1320
 %bcond_without  dnstap
 %bcond_without  lto
-%else
-%bcond_with     dnstap
-%bcond_with     lto
-%endif
-%if 0%{?suse_version} > 1230
 %bcond_without systemd
-%else
-%bcond_with    systemd
-%endif
 %if 0%{?is_opensuse}
 %bcond_without maxminddb
 %else
 %bcond_with    maxminddb
 %endif
-%if 0%{?suse_version} > 1140 && ( 0%{?suse_version} != 1315 || ( 0%{?suse_version} == 1315 && 0%{?is_opensuse} ))
 %bcond_without docs
-%else
-%bcond_with    docs
-%endif
 %if %{with systemd}
 %define has_systemd 1
 BuildRequires:  systemd-devel
 %{?systemd_requires}
 %endif
 Name:           knot
-Version:        3.1.4
+Version:        3.1.5
 Release:        0
 Summary:        An authoritative DNS daemon
 License:        GPL-3.0-or-later
@@ -99,6 +86,9 @@ removal.
 #
 Summary:        Development files for the knot libraries
 Group:          Development/Libraries/C and C++
+Requires:       %{libdnssec} = %{version}
+Requires:       %{libknot} = %{version}
+Requires:       %{libzscanner} = %{version}
 Requires:       knot = %{version}
 
 %description devel
@@ -246,7 +236,7 @@ fi
 
 %files
 %dir %attr(750,knot,knot) %{_sysconfdir}/%{pkg_name}
-%config(noreplace) %{_sysconfdir}/%{pkg_name}/%{pkg_name}.conf
+%config(noreplace) %attr(640,knot,knot) %{_sysconfdir}/%{pkg_name}/%{pkg_name}.conf
 %{_sbindir}/*
 %{_bindir}/*
 %{_mandir}/man?/*