diff --git a/test-requirements.txt b/test-requirements.txt
index 4cf6fd2..25c2aaf 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,3 +1,5 @@
+# open issue
+# https://gitlab.com/pycqa/flake8-docstrings/issues/36
 pydocstyle<4.0.0
 flake8
 flake8-colors