diff --git a/.gitignore b/.gitignore
index 6cd2a09..a99caf0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /matplotlib-scalebar-0.7.2.tar.gz
 /matplotlib-scalebar-0.8.0.tar.gz
 /matplotlib-scalebar-0.8.1.tar.gz
+/matplotlib-scalebar-2c57173.tar.gz
diff --git a/python-matplotlib-scalebar.spec b/python-matplotlib-scalebar.spec
index 56c4aa6..4121afa 100644
--- a/python-matplotlib-scalebar.spec
+++ b/python-matplotlib-scalebar.spec
@@ -1,15 +1,21 @@
+%global commit 2c57173d67a346b323a4afff7b7dd9c7f1314da4
+%global shortcommit %(c=%{commit}; echo ${c:0:7})
+%global snapdate 20230706
+%global releasever 0.8.1
+
 Name:           python-matplotlib-scalebar
-Version:        0.8.1
+Version:        %{releasever}^%{snapdate}git%{shortcommit}
 Release:        %autorelease
 Summary:        Artist for matplotlib to display a scale bar
 
 License:        BSD
 URL:            https://github.com/ppinard/matplotlib-scalebar
-Source0:        %{pypi_source matplotlib-scalebar}
+Source0:        %{url}/archive/%{commit}/matplotlib-scalebar-%{shortcommit}.tar.gz
 
 BuildArch:      noarch
 
 BuildRequires:  python3-devel
+BuildRequires:  python3dist(pytest)
 
 %global _description %{expand:
 Provides a new artist for matplotlib to display a scale bar, aka micron bar. It
@@ -42,23 +48,28 @@ Requires:       python3dist(requests)
 
 
 %prep
-%autosetup -n matplotlib-scalebar-%{version} -p1
+%autosetup -n matplotlib-scalebar-%{commit}
 
 
 %generate_buildrequires
-%pyproject_buildrequires -r requirements.txt requirements-test.txt
+# Python tools don't like %%version
+export SETUPTOOLS_SCM_PRETEND_VERSION=%{releasever}
+%pyproject_buildrequires
 
 
 %build
+export SETUPTOOLS_SCM_PRETEND_VERSION=%{releasever}
 %pyproject_wheel
 
 
 %install
+export SETUPTOOLS_SCM_PRETEND_VERSION=%{releasever}
 %pyproject_install
 %pyproject_save_files matplotlib_scalebar
 
 
 %check
+export SETUPTOOLS_SCM_PRETEND_VERSION=%{releasever}
 %pytest
 
 
diff --git a/sources b/sources
index 9aef11d..3c40c93 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (matplotlib-scalebar-0.8.1.tar.gz) = 1804a8ad9d9aa06bd0bf7042a86049d54cb3a08768ab1aeb445ba8469e24dcc0022099e39deb948dc1ddfc29e6da45973458fd7dd0a1168b0b1ed227aec46ffc
+SHA512 (matplotlib-scalebar-2c57173.tar.gz) = 2d71fafabdf12685fd27ab2b5cc3afb7ea8fe95036c2696ba9d895f0ca41b24b0c6b495cafd327a89ec704726c10a137e47c67ff1acc7702dff4ccb0c03f4f8e