diff --git a/changelog.d/6270.misc b/changelog.d/6270.misc
new file mode 100644
index 000000000..d1c581132
--- /dev/null
+++ b/changelog.d/6270.misc
@@ -0,0 +1 @@
+Update CI to run `isort` over the `scripts` and `scripts-dev` directories.
\ No newline at end of file
diff --git a/scripts-dev/update_database b/scripts-dev/update_database
index 10166583e..27a1ad1e7 100755
--- a/scripts-dev/update_database
+++ b/scripts-dev/update_database
@@ -25,8 +25,8 @@ from twisted.internet import defer, reactor
 from synapse.config.homeserver import HomeServerConfig
 from synapse.metrics.background_process_metrics import run_as_background_process
 from synapse.server import HomeServer
-from synapse.storage.engines import create_engine
 from synapse.storage import DataStore
+from synapse.storage.engines import create_engine
 from synapse.storage.prepare_database import prepare_database
 
 logger = logging.getLogger("update_database")
@@ -122,4 +122,3 @@ if __name__ == "__main__":
     ))
 
     reactor.run()
-
diff --git a/tox.ini b/tox.ini
index b381fbe06..50b6afe61 100644
--- a/tox.ini
+++ b/tox.ini
@@ -123,7 +123,7 @@ commands =
 [testenv:check_isort]
 skip_install = True
 deps = isort
-commands = /bin/sh -c "isort -c -df -sp setup.cfg -rc synapse tests"
+commands = /bin/sh -c "isort -c -df -sp setup.cfg -rc synapse tests scripts-dev scripts"
 
 [testenv:check-newsfragment]
 skip_install = True