diff --git a/qwt5-qt5.spec b/qwt5-qt5.spec
index 7ceca0e..a411134 100644
--- a/qwt5-qt5.spec
+++ b/qwt5-qt5.spec
@@ -4,20 +4,24 @@
 # This fork contains several bugfixes and configuration file patches, to comply
 # with distribution-specific system paths.
 
-%global commit0 0052f96fdd6d5f021f20a1cfc4d2fcfc605941da
+# Force out of source build
+%undefine __cmake_in_source_build
+
+%global commit0 acd8dbb0c373154c664e23cae7ccd70f7d0f2651
 %global shortcommit0 %(c=%{commit0}; echo ${c:0:7})
-%global commitdate 20200902
+%global commitdate 20210114
 %global owner gbm19
 
 Name:    qwt5-qt5
 Version: 5.2.3a
-Release: 8.%{commitdate}git%{shortcommit0}%{?dist}
+Release: 9.%{commitdate}git%{shortcommit0}%{?dist}
 Summary: Qt Widgets for Technical Applications adapted to Qt5
 
 License: LGPLv2+ with exceptions
 URL:     https://github.com/gbm19/qwt5-qt5
 Source:  https://github.com/%{owner}/%{name}/archive/master/%{name}-master.tar.gz
 
+BuildRequires: cmake
 BuildRequires: make
 BuildRequires: gcc-c++
 BuildRequires: pkgconfig(Qt5Gui) pkgconfig(Qt5Widgets) pkgconfig(Qt5PrintSupport)
@@ -57,13 +61,13 @@ for f in doc/man/man3/*.3; do mv $f ${f/%.3/.qt5.3}; done
 
 %build
 pushd %{name}-master
-%{qmake_qt5}
-%make_build
+%cmake .
+%cmake_build
 
 
 %install
 pushd %{name}-master
-make install INSTALL_ROOT=%{buildroot}
+%cmake_install
 
 %ldconfig_scriptlets
 
@@ -87,6 +91,10 @@ make install INSTALL_ROOT=%{buildroot}
 
 
 %changelog
+* Fri May 07 2021 Alexander Ploumistos <alexpl@fedoraproject.org> - 5.2.3a-9.20210114gitacd8dbb
+- Update to snapshot acd8dbb
+- Switch to cmake
+
 * Wed Jan 27 2021 Fedora Release Engineering <releng@fedoraproject.org> - 5.2.3a-8.20200902git0052f96
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
diff --git a/sources b/sources
index 3b75730..bb2de16 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (qwt5-qt5-master.tar.gz) = 8d8009ad146fd0136d9742d71588549ac37559b5cc727a9b483ee8d98690c486d65f7abe0d7228285ee8ce6072acb7f38e0d7b1458460a02ebc714b38a16e564
+SHA512 (qwt5-qt5-master.tar.gz) = 7854c2e425a16e30321ecf8c5fc5a563e81c77a15ab61a0dc143f3b7a2549c9191c24b0aca68cb02d24a1fb4a41a078820bcbeb7d64043b4a6cd8d9c6b91af4a