diff --git a/requirements/dev.txt b/requirements/dev.txt
index 42878e7fd..50be645c4 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -35,9 +35,9 @@ flake8==3.3.0 \
     --hash=sha256:83905eadba99f73fbfe966598aaf1682b3eb6755d2263c5b33a4e8367d60b0d1 \
     --hash=sha256:b907a26dcf5580753d8f80f1be0ec1d5c45b719f7bac441120793d1a70b03f12
 
-isort==4.2.14 \
-    --hash=sha256:4f9af1b1b834bd4dc0efcd41e42010a90f157ef03412b5384c8fe36345d72fd8 \
-    --hash=sha256:cac6007e64eb80dba17b490b43a553706c82f93b9f3791f8114624601127ed56
+isort==4.2.15 \
+    --hash=sha256:cd5d3fc2c16006b567a17193edf4ed9830d9454cbeb5a42ac80b36ea00c23db4 \
+    --hash=sha256:79f46172d3a4e2e53e7016e663cc7a8b538bec525c36675fcfd2767df30b3983
 
 # Required by pytest
 py==1.4.34 \