diff --git a/gtkmm30.spec b/gtkmm30.spec
index b53de44..42e2f75 100644
--- a/gtkmm30.spec
+++ b/gtkmm30.spec
@@ -2,28 +2,33 @@
 # first two digits of version
 %define release_version %(echo %{version} | awk -F. '{print $1"."$2}')
 
-%global atkmm_version 2.24.2
+%global glibmm24_version 2.54.0
+%global gtk3_version 3.24.0
 %global cairomm_version 1.12.0
-%global gdk_pixbuf2_version 2.35.5
-%global glibmm24_version 2.49.1
-%global gtk3_version 3.22.0
 %global pangomm_version 2.38.2
+%global gdk_pixbuf2_version 2.35.5
+%global atkmm_version 2.24.2
 
 Name:           gtkmm30
-Version:        3.24.2
-Release:        4%{?dist}
+Version:        3.24.3
+Release:        1%{?dist}
 Summary:        C++ interface for the GTK+ library
 
 License:        LGPLv2+
-URL:            http://www.gtkmm.org/
-Source0:        http://download.gnome.org/sources/gtkmm/%{release_version}/gtkmm-%{version}.tar.xz
+URL:            https://www.gtkmm.org/
+Source0:        https://download.gnome.org/sources/gtkmm/%{release_version}/gtkmm-%{version}.tar.xz
 
-BuildRequires:  gcc-c++
 BuildRequires:  atkmm-devel >= %{atkmm_version}
 BuildRequires:  cairomm-devel >= %{cairomm_version}
+BuildRequires:  doxygen
+BuildRequires:  gcc-c++
 BuildRequires:  gdk-pixbuf2-devel >= %{gdk_pixbuf2_version}
 BuildRequires:  glibmm24-devel >= %{glibmm24_version}
 BuildRequires:  gtk3-devel >= %{gtk3_version}
+BuildRequires:  libxslt
+BuildRequires:  m4
+BuildRequires:  meson
+BuildRequires:  mm-common
 BuildRequires:  pangomm-devel >= %{pangomm_version}
 
 Requires:       atkmm%{?_isa} >= %{atkmm_version}
@@ -67,38 +72,25 @@ cp -a demos/ _docs/
 
 
 %build
-# Disable LTO to work around https://bugzilla.redhat.com/show_bug.cgi?id=1898054
-%define _lto_cflags %{nil}
-
-%configure --disable-static
-
-# fix lib64 rpaths
-sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
-sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
-
-# avoid unused direct dependencies
-sed -i 's/ -shared / -Wl,-O1,--as-needed\0/g' libtool
-
-make %{?_smp_mflags}
+%meson -Dbuild-documentation=true
+%meson_build
 
 
 %install
-%make_install
-find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
-
-
-%ldconfig_scriptlets
+%meson_install
 
 
 %files
 %license COPYING
 %doc AUTHORS NEWS README
-%{_libdir}/*.so.*
+%{_libdir}/libgdkmm-%{apiver}.so.1*
+%{_libdir}/libgtkmm-%{apiver}.so.1*
 
 %files devel
 %{_includedir}/gtkmm-%{apiver}/
 %{_includedir}/gdkmm-%{apiver}/
-%{_libdir}/*.so
+%{_libdir}/libgdkmm-%{apiver}.so
+%{_libdir}/libgtkmm-%{apiver}.so
 %{_libdir}/gtkmm-%{apiver}/
 %{_libdir}/gdkmm-%{apiver}/
 %{_libdir}/pkgconfig/*.pc
@@ -110,6 +102,13 @@ find $RPM_BUILD_ROOT -name '*.la' -exec rm -f {} ';'
 
 
 %changelog
+* Mon Dec 14 2020 Kalev Lember <klember@redhat.com> - 3.24.3-1
+- Update to 3.24.3
+- Use https source URLs
+- Re-enable LTO now that we have upstream fix in place (#1898054)
+- Switch to meson build system
+- Tighten soname globs
+
 * Sat Nov 21 2020 Andrew Potter <agpotter@gmail.com> - 3.24.2-4
 - Opt-out of LTO (#1898054)
 
diff --git a/sources b/sources
index 7aa4436..69c893b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (gtkmm-3.24.2.tar.xz) = c8f9f03d54006a729fdad7563d3be37aa180f9153c222314c1b8cfddc5ab417d184422a1d44f780574248ea52e679f1e360eac67e03f67d29ecf847c0ab19689
+SHA512 (gtkmm-3.24.3.tar.xz) = e373807ec245057708655fa5dbf18d5391656a55b008fd6aa0fdc5a56e80d288813c3bbb0093f39aa7679df866a176f1e6b0e842d4d1b18b775a5928eed9fef5