diff --git a/requirements_dev.txt b/requirements_dev.txt
index 242e021..8470ba9 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -14,6 +14,6 @@ coverage[toml]>=4.5.4
 # doc requirements
 -r docs/requirements.txt
 # package runtime requirements
-flake8==5.0.4
+flake8==6.1.0
 nbconvert==7.6.0; python_version > '3.7'
 ipython==8.14.0; python_version >= '3.9'