diff --git a/.gitignore b/.gitignore
index e3b302d..45464ab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,6 @@
 /OWSLib-0.31.0-filtered.tar.zst
 /OWSLib-0.32.0-filtered.tar.zst
 /OWSLib-0.33.0-filtered.tar.zst
+/OWSLib-0.34.0-filtered.tar.zst
+/OWSLib-0.34.1-filtered.tar.zst
+/OWSLib-0.35.0-filtered.tar.zst
diff --git a/python-OWSLib.rpmlintrc b/python-OWSLib.rpmlintrc
index 981f880..694038d 100644
--- a/python-OWSLib.rpmlintrc
+++ b/python-OWSLib.rpmlintrc
@@ -1,2 +1,7 @@
-# All documentation is in the -doc subpackage.
-addFilter(r" no-documentation$")
+# The source cannot be a URL because we have to filter out files before
+# uploading to the lookaside cache.
+addFilter(r" invalid-url .* OWSLib-.*-filtered\.tar\.zst")
+# There is nothing wrong with .tar.zst, but rpmlint does not know that.
+addFilter(r" inconsistent-file-extension .*\.tar\.zst")
+# Removed without replacement in Fedora 42
+addFilter(r" obsolete-not-provided python-OWSLIB-doc")
diff --git a/python-OWSLib.spec b/python-OWSLib.spec
index e73f570..a44a326 100644
--- a/python-OWSLib.spec
+++ b/python-OWSLib.spec
@@ -1,8 +1,5 @@
-# Not yet in EPEL10: https://bugzilla.redhat.com/show_bug.cgi?id=2324280
-%bcond pytest_httpserver %{undefined el10}
-
 Name:           python-OWSLib
-Version:        0.33.0
+Version:        0.35.0
 Release:        %autorelease
 Summary:        OGC Web Service utility library
 
@@ -26,15 +23,14 @@ URL:            https://geopython.github.io/OWSLib
 Source0:        OWSLib-%{version}-filtered.tar.zst
 Source1:        get_source
 
-BuildArch:      noarch
+BuildSystem:            pyproject
+BuildOption(install):   -l owslib
 
-BuildRequires:  python3-devel
+BuildArch:      noarch
 
 # Tests; dependencies are in requirements-dev.txt.
 BuildRequires:  %{py3_dist pytest}
-%if %{with pytest_httpserver}
 BuildRequires:  %{py3_dist pytest_httpserver}
-%endif
 BuildRequires:  %{py3_dist Pillow}
 # We don’t have pytest-socket packaged, and we can get by without it.
 # - pytest-socket
@@ -69,42 +65,22 @@ Summary:        %{summary}
 
 %py_provides python3-owslib
 
-%if %{undefined el10}
 # The -doc subpackage was removed for Fedora 42; we can remove this Obsoletes
 # after Fedora 44. (EPEL10 never had a -doc subpackage.)
 Obsoletes:      python-OWSLIB-doc < 0.32.0-1
-%endif
 
 %description -n python3-OWSLib %{common_description}
 
 
-%prep
-%autosetup -n OWSLib-%{version}
-
+%prep -a
 # Don’t analyze/report test coverage
 sed -r -i 's/^([[:blank:]]*)(--cov\b)/\1# \2/' tox.ini
 
 
-%generate_buildrequires
-%pyproject_buildrequires
-
-
-%build
-%pyproject_wheel
-
-
-%install
-%pyproject_install
-%pyproject_save_files -l owslib
-
-
-%check
+%check -a
 # Otherwise, pytest finds the package twice in the Python path and complains.
 rm -rf owslib
 
-# This requires network access (during test collection!)
-ignore="${ignore-} --ignore=tests/test_ogcapi_connectedsystems_osh.py"
-
 # These require test data files from tests/resources/, which we have removed:
 ignore="${ignore-} --ignore-glob=tests/doctests/*.txt"
 k="${k-}${k+ and }not test_gm03"
@@ -156,10 +132,6 @@ k="${k-}${k+ and }not test_md_reference_system"
 k="${k-}${k+ and }not test_service2"
 k="${k-}${k+ and }not test_md_distribution"
 
-%if %{without pytest_httpserver}
-ignore="${ignore-} --ignore=tests/test_csw_inspire.py"
-%endif
-
 %pytest -m 'not online' -k "${k-}" ${ignore-} -v -rs
 
 
diff --git a/sources b/sources
index 546199e..da0ff49 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (OWSLib-0.33.0-filtered.tar.zst) = c7fcafce066029620ff538b7e75cf67e3199596bc1920fc0b13320416009554b43db05f051beb4bfaf42994ecd3c6f222625e5a1d3a40229c10f07165fca16ba
+SHA512 (OWSLib-0.35.0-filtered.tar.zst) = be1eb52fa09049b720c1ebd476363e01c6442c9905c9adf0d35ccc11f39b228b9f3e64ed882a7c04987f2f38f9c8500a61aeef61e48a41602098ff22df0ed526