diff --git a/zopsm/requirements.txt b/zopsm/requirements.txt
index 73390db..631e8d9 100644
--- a/zopsm/requirements.txt
+++ b/zopsm/requirements.txt
@@ -14,7 +14,7 @@ gunicorn==19.7.1
 hiredis==0.3.0
 hvac==0.7.0
 idna==2.7
-isort==4.3.16
+isort==5.11.3
 lazy-object-proxy==1.3.1
 Mako==1.0.7
 MarkupSafe==1.1.0