diff --git a/pkgs/development/python-modules/qcodes/default.nix b/pkgs/development/python-modules/qcodes/default.nix
index db565e11d02d..3dd8342ec1cd 100644
--- a/pkgs/development/python-modules/qcodes/default.nix
+++ b/pkgs/development/python-modules/qcodes/default.nix
@@ -124,6 +124,11 @@ buildPythonPackage rec {
     "--durations=20"
   ];
 
+  disabledTests = [
+    # timing sensitive
+    "test_access_channels_by_slice"
+  ];
+
   disabledTestPaths = [
     # depends on qcodes-loop, causing a cyclic dependency
     "qcodes/tests/dataset/measurement/test_load_legacy_data.py"