diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51e9a02..db8406f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,5 @@
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 2.8)
 project(qcustomplot)
-include(GNUInstallDirs)
 
 set(LIB_VER "" CACHE STRING "Library version")
 set(QT_VER "6" CACHE STRING "Target Qt version")
@@ -24,12 +23,12 @@ endif()
 target_link_libraries(qcustomplot Qt${QT_VER}::Core Qt${QT_VER}::Gui Qt${QT_VER}::Widgets Qt${QT_VER}::PrintSupport)
 
 install(TARGETS qcustomplot
-  RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
-  LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
-  ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
+  RUNTIME DESTINATION bin
+  LIBRARY DESTINATION lib${LIB_SUFFIX}
+  ARCHIVE DESTINATION lib${LIB_SUFFIX}
 )
 
 # Headers
 install(FILES qcustomplot.h
-  DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}
+  DESTINATION include
 )
diff --git a/qcustomplot.spec b/qcustomplot.spec
index 87b1b81..c7bf136 100644
--- a/qcustomplot.spec
+++ b/qcustomplot.spec
@@ -12,7 +12,7 @@
 
 Name:           qcustomplot
 Version:        2.1.1
-Release:        14%{?dist}
+Release:        9%{?dist}
 Summary:        Qt widget for plotting and data visualization
 
 License:        GPL-3.0-or-later
@@ -40,6 +40,7 @@ This package contains the Qt4 version.
 
 %package        qt5
 Summary:        Qt widget for plotting and data visualization
+Requires:       %{name}-qt5%{?_isa} = %{version}-%{release}
 
 %description    qt5
 QCustomPlot is a Qt C++ widget for plotting and data visualization.
@@ -62,6 +63,7 @@ developing applications that use %{name} (Qt5).
 %if %{with qt6}
 %package        qt6
 Summary:        Qt widget for plotting and data visualization
+Requires:       %{name}-qt5%{?_isa} = %{version}-%{release}
 
 %description    qt6
 QCustomPlot is a Qt C++ widget for plotting and data visualization.
@@ -74,7 +76,7 @@ This package contains the Qt6 version.
 
 %package        qt6-devel
 Summary:        Development files for %{name} (Qt6)
-Requires:       %{name}-qt6%{?_isa} = %{version}-%{release}
+Requires:       %{name}-qt5%{?_isa} = %{version}-%{release}
 
 %description    qt6-devel
 The %{name}-devel package contains libraries and header files for
@@ -169,21 +171,6 @@ EOF
 
 
 %changelog
-* Sun Oct 12 2025 Yaakov Selkowitz <yselkowi@redhat.com> - 2.1.1-14
-- Fix dependencies
-
-* Fri Jul 25 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.1-13
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Thu Jul 17 2025 Sandro Mani <manisandro@gmail.com> - 2.1.1-12
-- Raise minimum CMake version, use GNUInstallDirs
-
-* Sat Jan 18 2025 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.1-11
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.1-10
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
-
 * Fri Jan 26 2024 Fedora Release Engineering <releng@fedoraproject.org> - 2.1.1-9
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild