diff --git a/requirements/dev.txt b/requirements/dev.txt
index e7750be..1243a57 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -10,5 +10,5 @@ pydocstyle==6.0.0
 pylint==2.7.4
 safety==1.10.3
 bandit==1.7.0
-isort==5.7.0; (python_version == '3.5' or python_version == '3.6')  # pyup: ignore
+isort==5.8.0; (python_version == '3.5' or python_version == '3.6')  # pyup: ignore
 isort==5.8.0; python_version > '3.6'