diff --git a/.gitignore b/.gitignore
index 910dff2..e435feb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,17 +1,2 @@
 /uharfbuzz-0.45.0-filtered.tar.gz
 /uharfbuzz-0.46.0-filtered.tar.gz
-/uharfbuzz-0.49.0-filtered.tar.gz
-/uharfbuzz-0.50.0-filtered.tar.gz
-/uharfbuzz-0.50.2-filtered.tar.gz
-/uharfbuzz-0.51.0-filtered.tar.gz
-/uharfbuzz-0.51.1-filtered.tar.gz
-/uharfbuzz-0.51.2-filtered.tar.gz
-/uharfbuzz-0.51.3-filtered.tar.gz
-/uharfbuzz-0.51.4-filtered.tar.gz
-/uharfbuzz-0.51.5-filtered.tar.gz
-/uharfbuzz-0.51.6-filtered.tar.gz
-/uharfbuzz-0.51.7-filtered.tar.gz
-/uharfbuzz-0.52.0-filtered.tar.gz
-/uharfbuzz-0.53.0-filtered.tar.gz
-/uharfbuzz-0.53.1-filtered.tar.gz
-/uharfbuzz-0.53.2-filtered.tar.gz
diff --git a/python-uharfbuzz.rpmlintrc b/python-uharfbuzz.rpmlintrc
deleted file mode 100644
index b95bdff..0000000
--- a/python-uharfbuzz.rpmlintrc
+++ /dev/null
@@ -1,2 +0,0 @@
-# This Source cannot be a URL because we must filter out certain files.
-addFilter(r" invalid-url Source[0-9]+: uharfbuzz-.*-filtered\.tar\.gz")
diff --git a/python-uharfbuzz.spec b/python-uharfbuzz.spec
index 5682a9e..946109e 100644
--- a/python-uharfbuzz.spec
+++ b/python-uharfbuzz.spec
@@ -1,5 +1,5 @@
 Name:           python-uharfbuzz
-Version:        0.53.2
+Version:        0.46.0
 Release:        %autorelease
 Summary:        Streamlined Cython bindings for the harfbuzz shaping engine
 
@@ -51,10 +51,7 @@ URL:            https://github.com/harfbuzz/uharfbuzz
 Source0:        uharfbuzz-%{version}-filtered.tar.gz
 Source1:        get_source
 
-BuildSystem:            pyproject
-BuildOption(generate_buildrequires): -t
-BuildOption(install):   -l uharfbuzz
-
+BuildRequires:  python3-devel
 BuildRequires:  gcc-c++
 BuildRequires:  pkgconfig(harfbuzz-subset)
 
@@ -70,24 +67,33 @@ Summary:        %{summary}
 %description -n python3-uharfbuzz %{common_description}
 
 
-%prep -a
+%prep
+%autosetup -n uharfbuzz-%{version}
+
 # Remove Cythonized C++ sources (if any remain):
 # https://docs.fedoraproject.org/en-US/packaging-guidelines/Python/#_using_cython
 find . -type f -exec grep -FrinIl 'Generated by Cython' '{}' '+' |
   xargs -r -t rm -v
 
 
-%generate_buildrequires -p
+%generate_buildrequires
 export SETUPTOOLS_SCM_PRETEND_VERSION='%{version}'
 export USE_SYSTEM_LIBS=1
+%pyproject_buildrequires -t
 
 
-%build -p
+%build
 export SETUPTOOLS_SCM_PRETEND_VERSION='%{version}'
 export USE_SYSTEM_LIBS=1
+%pyproject_wheel
 
 
-%check -a
+%install
+%pyproject_install
+%pyproject_save_files -l uharfbuzz
+
+
+%check
 # Requires SparseFont.ttf, omitted from the source archive, via the sparsefont
 # fixture:
 k="${k-}${k+ and }not test_sparsefont_coretext"
diff --git a/sources b/sources
index 1913757..ba02835 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (uharfbuzz-0.53.2-filtered.tar.gz) = adc87172df16724cf3f4408b35c5750cc295cb243f921dbb9ec5ece5058f161167ce79cbcaf09111dab0606ca8a9cdf5fe4584808cef4fc2052246dbb88f84b7
+SHA512 (uharfbuzz-0.46.0-filtered.tar.gz) = 995afc0f40734213c2a76e41965db8c794070c762efdd6df804b0005e866a725b4c3da658560d3a337879fb5fc837e7587f2e26679ae524b089b375da269e79d