diff --git a/requirements-dev.txt b/requirements-dev.txt
index cd6765076..849362279 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@ pylint==2.9.3
 flake8==3.9.2
 mypy==0.902
 pydocstyle==6.1.1
-doc8==0.8.1
+doc8==0.9.0
 tox==3.24.0
 pytest==6.2.4
 pytest-cov==2.12.1