diff --git a/requirements/dev.txt b/requirements/dev.txt
index 05f4af7f9e6..8c7a85d20d9 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -114,7 +114,7 @@ iniconfig==1.1.1
     # via
     #   -r requirements/lint.txt
     #   pytest
-isort==5.9.0
+isort==5.9.1
     # via -r requirements/lint.txt
 jinja2==2.11.3
     # via
diff --git a/requirements/lint.in b/requirements/lint.in
index 435c6ae1979..f247106e3e8 100644
--- a/requirements/lint.in
+++ b/requirements/lint.in
@@ -1,7 +1,7 @@
 black==21.6b0; implementation_name=="cpython"
 flake8==3.9.2
 flake8-pyi==20.10.0
-isort==5.9.0
+isort==5.9.1
 mypy==0.790; implementation_name=="cpython"
 pre-commit==2.13.0
 pytest==6.2.2
diff --git a/requirements/lint.txt b/requirements/lint.txt
index 41f7a7be83e..01671b28b00 100644
--- a/requirements/lint.txt
+++ b/requirements/lint.txt
@@ -32,7 +32,7 @@ identify==1.5.14
     # via pre-commit
 iniconfig==1.1.1
     # via pytest
-isort==5.9.0
+isort==5.9.1
     # via -r requirements/lint.in
 mccabe==0.6.1
     # via flake8