diff --git a/libvoikko.spec b/libvoikko.spec
index 984aded..a5d9cf5 100644
--- a/libvoikko.spec
+++ b/libvoikko.spec
@@ -1,21 +1,29 @@
+%global _hardened_build 1
+
 Name:           libvoikko
-Version:        4.1.1
-Release:        9%{?dist}
+Version:        4.3
+Release:        2%{?dist}
 Summary:        Voikko is a library for spellcheckers and hyphenators
 
 License:        GPLv2+
-URL:            http://voikko.puimula.org
+URL:            https://voikko.puimula.org
 # The usual format of stable release URLs
-Source0:        http://www.puimula.org/voikko-sources/%{name}/%{name}-%{version}.tar.gz
+Source0:        https://www.puimula.org/voikko-sources/%{name}/%{name}-%{version}.tar.gz
 # The usual format of test release URLs
-#Source0:        http://www.puimula.org/htp/testing/%%{name}-%%{version}rc1.tar.gz
+#Source0:        https://www.puimula.org/htp/testing/%%{name}-%%{version}rc1.tar.gz
+
+# See https://voikko.puimula.org/sources.html for the key fingerprint.
+# I did
+#  gpg --recv-keys "AC5D 65F1 0C85 96D7 E2DA  E263 3D30 9B60 4AE3 942E"
+# and then
+#  gpg2 --export --export-options export-minimal AC5D65F10C8596D7E2DAE2633D309B604AE3942E > gpgkey-AC5D65F10C8596D7E2DAE2633D309B604AE3942E.gpg
+Source1:        http://www.puimula.org/voikko-sources/%{name}/%{name}-%{version}.tar.gz.asc
+Source2:        gpgkey-AC5D65F10C8596D7E2DAE2633D309B604AE3942E.gpg
 
 BuildRequires:  gcc-c++
 BuildRequires:  python3-devel
 BuildRequires: make
-# Require the Finnish morphology because Finnish is currently the only language
-# supported by libvoikko in Fedora.
-Requires:       malaga-suomi-voikko
+BuildRequires: gnupg2
 
 %description
 This is libvoikko, library for spellcheckers and hyphenators using Malaga
@@ -51,7 +59,6 @@ scripts.
 Summary:        Python interface to %{name}
 Requires:       %{name} = %{version}-%{release}
 BuildArch:      noarch
-%{?python_provide:%python_provide python3-libvoikko}
 
 %description -n python3-libvoikko
 Python interface to libvoikko, library of Finnish language tools.
@@ -59,18 +66,20 @@ This module can be used to perform various natural language analysis
 tasks on Finnish text.
 
 %prep
-%setup -q
+%{gpgverify} --keyring='%{SOURCE2}' --signature='%{SOURCE1}' --data='%{SOURCE0}'
+
+%autosetup
 
 
 %build
-# The dictionary path must be the same where malaga-suomi-voikko is installed
-# Use malaga for now, no hfst or vfst. We need to package foma for the vfst dictionaries.
-%configure --with-dictionary-path=%{_libdir}/voikko --disable-hfst --disable-vfst --disable-buildtools --enable-malaga
+# Use vfst for now, no hfst yet. We need to package hfst-ospell for the hfst dictionaries.
+# Use /usr/lib/voikko for the dictionaries, this is where the voikko-fi package will put them.
+%configure --disable-hfst --with-dictionary-path=/usr/lib/voikko
 # Remove rpath,
 # https://fedoraproject.org/wiki/Packaging/Guidelines#Removing_Rpath
 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
-make %{?_smp_mflags} CXXFLAGS="$CXXFLAGS"
+%make_build CXXFLAGS="$CXXFLAGS"
 
 
 %install
@@ -82,34 +91,42 @@ find $RPM_BUILD_ROOT -name '*.a' -exec rm -f {} ';'
 install -d $RPM_BUILD_ROOT%{python3_sitelib}
 install -pm 0644 python/libvoikko.py $RPM_BUILD_ROOT%{python3_sitelib}/
 
-%ldconfig_scriptlets
-
 
 %files
 %doc ChangeLog COPYING README
-%{_libdir}/*.so.*
+%{_libdir}/libvoikko.so.1*
 
 %files -n voikko-tools
 %{_bindir}/voikkospell
 %{_bindir}/voikkohyphenate
 %{_bindir}/voikkogc
+%{_bindir}/voikkovfstc
 %{_mandir}/man1/voikkohyphenate.1*
 %{_mandir}/man1/voikkospell.1*
 %{_mandir}/man1/voikkogc.1*
+%{_mandir}/man1/voikkovfstc.1*
 
 %files devel
 %{_includedir}/*
-%{_libdir}/*.so
+%{_libdir}/libvoikko.so
 %{_libdir}/pkgconfig/libvoikko.pc
 
 %files -n python3-libvoikko
-%{python3_sitelib}/%{name}.py*
-%{python3_sitelib}/__pycache__/*
+%pycached %{python3_sitelib}/%{name}.py
 
 %changelog
-* Tue Jan 26 2021 Fedora Release Engineering <releng@fedoraproject.org> - 4.1.1-9
+* Sun Jan 24 2021 Ville-Pekka Vainio <vpvainio AT iki.fi> - 4.3-2
+- Bump release for a new Copr build
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_34_Mass_Rebuild
 
+* Sat Jan 16 2021 Ville-Pekka Vainio <vpvainio AT iki.fi> - 4.3-1
+- Update to 4.3
+- Add GPG signature check for the source
+- Fix pycached stuff
+- Remove old python_provide macro
+- Remove ldconfig_scriptlets macro
+- Only use VFST for now, HFST can be provided in a later update
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.1.1-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild