diff --git a/python-matplotlib.spec b/python-matplotlib.spec
index 171d17d..8d92775 100644
--- a/python-matplotlib.spec
+++ b/python-matplotlib.spec
@@ -10,8 +10,8 @@
 %bcond_without wx
 %endif
 
-# the default backend; one of GTK3Agg GTK3Cairo MacOSX Qt4Agg Qt5Agg TkAgg
-# WXAgg Agg Cairo PS PDF SVG
+# The default backend; one of GTK3Agg GTK3Cairo GTK4Agg GTK4Cairo MacOSX QtAgg
+# TkAgg WXAgg Agg Cairo PS PDF SVG
 %global backend                 TkAgg
 
 %if "%{backend}" == "TkAgg"
@@ -183,7 +183,7 @@ Recommends:     texlive-dvipng
 Requires:       (texlive-dvipng if texlive-base)
 Requires:       python3-matplotlib-data = %{version}-%{release}
 Requires:       python3dist(pycairo)
-Requires:       python3-matplotlib-%{?backend_subpackage}%{!?backend_subpackage:tk}%{?_isa} = %{version}-%{release}
+Recommends:     python3-matplotlib-%{?backend_subpackage}%{!?backend_subpackage:tk}%{?_isa} = %{version}-%{release}
 %if %{with check}
 BuildRequires:  python3dist(pytest)
 BuildRequires:  python3dist(pytest-rerunfailures)