diff --git a/docs/requirements.txt b/docs/requirements.txt
index a0e2a5d..8c75b02 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1,5 @@
 ansi2html==1.6.0
-flake8==3.9.0
+flake8==3.9.1
 flake8-quotes==3.2.0
 hypothesis==6.8.5
 markdown-include==0.6.0
diff --git a/tests/requirements-linting.txt b/tests/requirements-linting.txt
index 57221b6..6e552df 100644
--- a/tests/requirements-linting.txt
+++ b/tests/requirements-linting.txt
@@ -1,5 +1,5 @@
 black==20.8b1
-flake8==3.9.0
+flake8==3.9.1
 flake8-quotes==3.2.0
 hypothesis==6.8.5
 isort==5.8.0