diff --git a/requirements-test.txt b/requirements-test.txt
index 35b05695..76780478 100644
--- a/requirements-test.txt
+++ b/requirements-test.txt
@@ -15,7 +15,7 @@ statsmodels==0.13.2
 sklearn-contrib-lightning==0.6.2.post0
 
 # Testing tools
-flake8==5.0.4
+flake8==6.0.0
 isort==5.10.1
 pytest==7.1.3
 pytest-mock==3.8.2