diff --git a/changes/1376.misc.rst b/changes/1376.misc.rst
new file mode 100644
index 000000000..15cb3d73d
--- /dev/null
+++ b/changes/1376.misc.rst
@@ -0,0 +1 @@
+When running tests or building docs in tox, Briefcase is now installed as a wheel instead of an sdist.
diff --git a/tox.ini b/tox.ini
index dee1eb71c..fd660027c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -19,6 +19,8 @@ commands_pre = python -m install_requirement --extra dev --project-root "{tox_ro
 commands = pre-commit run --all-files --show-diff-on-failure --color=always
 
 [testenv:py{,38,39,310,311,312}{,-fast}]
+package = wheel
+wheel_build_env = .pkg
 depends: pre-commit
 use_develop = fast: True
 # Needed on Windows to test data directory creation
@@ -90,6 +92,8 @@ sphinx_args = -W --keep-going -j auto -n
 sphinx_args_extra = {[docs]sphinx_args} -v -E -T -a -d {envtmpdir}/doctrees
 
 [testenv:docs{,-lint,-all}]
+package = wheel
+wheel_build_env = .pkg
 change_dir = docs
 extras = docs
 passenv =