diff --git a/pkgs/development/python-modules/oletools/default.nix b/pkgs/development/python-modules/oletools/default.nix
index 2ccd85b43e80..bc197109e83a 100644
--- a/pkgs/development/python-modules/oletools/default.nix
+++ b/pkgs/development/python-modules/oletools/default.nix
@@ -43,6 +43,10 @@ buildPythonPackage rec {
     # Test fails with AssertionError: Tuples differ: ('MS Word 2007+...
     "test_all"
     "test_xlm"
+    # AssertionError: Found "warn" in output...
+    "test_empty_behaviour"
+    "test_rtf_behaviour"
+    "test_text_behaviour"
   ];
 
   pythonImportsCheck = [ "oletools" ];