diff --git a/pkgs/servers/radicale/3.x.nix b/pkgs/servers/radicale/3.x.nix
index 3df1ae7c4d1d..88f6d836a261 100644
--- a/pkgs/servers/radicale/3.x.nix
+++ b/pkgs/servers/radicale/3.x.nix
@@ -44,6 +44,11 @@ python3.pkgs.buildPythonApplication rec {
     waitress
   ];
 
+  pytestFlagsArray = [
+    # pytest.PytestRemovedIn8Warning: Support for nose tests is deprecated and will be removed in a future release.
+    "-W" "ignore::pytest.PytestRemovedIn8Warning"
+  ];
+
   passthru.tests = {
     inherit (nixosTests) radicale;
   };