diff --git a/.gitignore b/.gitignore
index 8d5f29d..dab399c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,4 @@ dnsperf-src-1.0.1.0-1.tar.gz
 /dnsperf-2.3.2.tar.gz
 /dnsperf-2.3.4.tar.gz
 /dnsperf-2.4.0.tar.gz
+/dnsperf-2.5.1.tar.gz
diff --git a/dnsperf.spec b/dnsperf.spec
index 7c1260b..a121e66 100644
--- a/dnsperf.spec
+++ b/dnsperf.spec
@@ -10,8 +10,8 @@
 
 Summary: Benchmarking authorative and recursing DNS servers
 Name: dnsperf
-Version: 2.4.0
-Release: 6%{?dist}
+Version: 2.5.1
+Release: 1%{?dist}
 # New page was found, but on github is also project, that seems to be official.
 #
 # Github project has different license and so far is the only one with any
@@ -37,14 +37,12 @@ Source0: https://www.dns-oarc.net/files/dnsperf/%{name}-%{version}.tar.gz
 Source1: https://www.dns-oarc.net/files/dnsperf/data/queryfile-example-10million-%{dataversion}.gz
 
 Patch1: dnsperf-nolicense.patch
-# https://github.com/DNS-OARC/dnsperf/pull/125
-Patch2: dnsperf-2.4-queryparse-sort-list.patch
-Patch3: dnsperf-2.4-queryparse-interrupt.patch
 
 BuildRequires: gcc, make
 BuildRequires: autoconf automake libtool
 BuildRequires: ldns-devel
 BuildRequires: openssl-devel
+BuildRequires: ck-devel
 
 %if %{with python2} || %{with python3}
 BuildRequires: /usr/bin/pathfix.py
@@ -149,6 +147,9 @@ chmod 644 %{buildroot}%{_datadir}/%{name}/queryfile-example-current
 %{_datadir}/dnsperf/queryfile-example-current
 
 %changelog
+* Tue Mar 23 2021 Petr Menšík <pemensik@redhat.com> - 2.5.1-1
+- Update to 2.5.1
+
 * Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 2.4.0-6
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 1c19b71..a1dda66 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (dnsperf-2.4.0.tar.gz) = dfa4ff3d941fd39af09901dcbb7e10c048687a469c1698408360bc509909a5d5b13bd270c91d886732fc4490d886ebc906f1b9f290ffa357bf53c7e99b69c679
+SHA512 (dnsperf-2.5.1.tar.gz) = cd19973560ddb3fa5f9e503b7e904edbed229745ec13cdc32a94444b8e7ec62433128dfd1d212ba47f2c7e749f9ef7ab3af4f2744fb9a23641c8dfb74ce9b102
 SHA512 (queryfile-example-10million-201202.gz) = b679332a6e8d51d3dd4fc149d62f4362d513ad3430859debaa5d025b1d3cb122d07880b7785e0f33181cf4e68216b0dbeeeb47b4d588ba263b68540d22581ff8