add TODO in requirements-test.txt

diff --git a/requirements-test.txt b/requirements-test.txt
index 2758f0a98c2a847412a7f13c172048d90f6ad266..153ebb822d78d4beacc029ceda251393c8cd2f64 100644 (file)
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -1,3 +1,4 @@
+# TODO: test upgrading these; verify they work on older OSes/Python versions
 coverage>=6.2
 pytest>=7.0.1
 requests-mock>=1.12.1