diff --git a/.gitignore b/.gitignore
index 352ec20..991b768 100644
--- a/.gitignore
+++ b/.gitignore
@@ -20,3 +20,4 @@ modules-3.2.8.tar.bz2
 /modules-4.3.1.tar.bz2
 /modules-4.4.0.tar.bz2
 /modules-4.4.1.tar.bz2
+/modules-4.5.0.tar.bz2
diff --git a/environment-modules.spec b/environment-modules.spec
index 4733fc9..957be55 100644
--- a/environment-modules.spec
+++ b/environment-modules.spec
@@ -2,8 +2,8 @@
 %global vimdatadir %{_datadir}/vim/vimfiles
 
 Name:           environment-modules
-Version:        4.4.1
-Release:        2%{?dist}
+Version:        4.5.0
+Release:        1%{?dist}
 Summary:        Provides dynamic modification of a user's environment
 
 License:        GPLv2+
@@ -69,9 +69,10 @@ This package provides Environment Modules compatibility version (3.2).
            --vimdatadir=%{vimdatadir} \
            --enable-dotmodulespath \
            --disable-set-shell-startup \
+           --with-python=/usr/bin/python3 \
            --with-initconf-in=etcdir \
            --with-modulepath=%{_datadir}/Modules/modulefiles:%{_sysconfdir}/modulefiles:%{_datadir}/modulefiles \
-           --with-quarantine-vars=LD_LIBRARY_PATH
+           --with-quarantine-vars='LD_LIBRARY_PATH LD_PRELOAD'
 make %{?_smp_mflags}
 
 
@@ -103,12 +104,9 @@ mv {doc/build/,}MIGRATING.txt
 mv {doc/build/,}CONTRIBUTING.txt
 mv {doc/build/,}diff_v3_v4.txt
 mv {doc/,}example.txt
-rm -f %{buildroot}%{_docdir}/%{name}/{COPYING.GPLv2,ChangeLog-compat,INSTALL.txt,NEWS-compat}
+rm -f %{buildroot}%{_docdir}/%{name}/{COPYING.GPLv2,ChangeLog-compat,INSTALL{,-win}.txt,NEWS-compat}
 
-cp -p contrib/scripts/createmodule.sh %{buildroot}%{_datadir}/Modules/bin
-cp -p contrib/scripts/createmodule.py %{buildroot}%{_datadir}/Modules/bin
-sed -i -e 1s,/usr/bin/python,/usr/bin/python3, \
-    %{buildroot}%{_datadir}/Modules/bin/createmodule.py
+cp -p script/createmodule.sh %{buildroot}%{_datadir}/Modules/bin
 
 install -Dpm 644 contrib/rpm/macros.%{name} %{buildroot}/%{macrosdir}/macros.%{name}
 
@@ -173,6 +171,7 @@ fi
 %config(noreplace) %{_sysconfdir}/%{name}/siteconfig.tcl
 %{_datadir}/Modules/modulefiles
 %{_datadir}/modulefiles
+%{_mandir}/man1/ml.1.gz
 %ghost %{_mandir}/man1/module.1.gz
 %ghost %{_mandir}/man4/modulefile.4.gz
 %{_mandir}/man1/module-c.1.gz
@@ -190,6 +189,10 @@ fi
 
 
 %changelog
+* Wed Apr  8 2020 Jan Synáček <jsynacek@redhat.com> - 4.5.0-1
+- Update to 4.5.0 (#1821883)
+  + Big thanks to Xavier Delaruelle for a spec patch!
+
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 4.4.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
 
diff --git a/sources b/sources
index 905244c..6fa4a4f 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (modules-4.4.1.tar.bz2) = 35b33ea2b394011673fddd962336f61ec1b35b4ee5669ec5fecadf84261dfee67b12072fc3d487f499ec29eedc1d6a94b6671461960e094fae8071694085bf1b
+SHA512 (modules-4.5.0.tar.bz2) = 705d1677c6d4fac1ebb5bad0a726c9e6833f1c061855e9fa01f1e369d9d53cedf9a2decec73288fb3c08137c510bfdb6c670521282bb470855f4a2cd51a47f8e