diff --git a/requirements.txt b/requirements.txt
index 9b09507..b3e6c21 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -14,7 +14,7 @@ idna==2.8
 idna-ssl==1.1.0
 importlib-metadata==0.8
 importlib-resources==1.0.2
-isort==4.3.7
+isort==4.3.8
 lazy-object-proxy==1.3.1
 lxml==4.3.1
 marshmallow==3.0.0rc4