diff --git a/Tests/test_file_pdf.py b/Tests/test_file_pdf.py
index 4129e8783..9667b6a4a 100644
--- a/Tests/test_file_pdf.py
+++ b/Tests/test_file_pdf.py
@@ -42,7 +42,6 @@ def test_save(tmp_path, mode):
     helper_save_as_pdf(tmp_path, mode)
 
 
-@pytest.mark.valgrind_known_error(reason="Temporary skip")
 def test_monochrome(tmp_path):
     # Arrange
     mode = "1"