diff --git a/pkgs/development/python-modules/datasette/default.nix b/pkgs/development/python-modules/datasette/default.nix
index fd31d3bbf189..29cf78eeed88 100644
--- a/pkgs/development/python-modules/datasette/default.nix
+++ b/pkgs/development/python-modules/datasette/default.nix
@@ -79,7 +79,12 @@ buildPythonPackage rec {
   # takes 30-180 mins to run entire test suite, not worth the CPU resources, slows down reviews
   # with pytest-xdist, it still takes around 10 mins with 32 cores
   # just run the csv tests, as this should give some indictation of correctness
-  pytestFlagsArray = [ "tests/test_csv.py" ];
+  pytestFlagsArray = [
+    # datasette/app.py:14: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
+    "-W"
+    "ignore::DeprecationWarning"
+    "tests/test_csv.py"
+  ];
 
   disabledTests = [
     "facet"