diff --git a/.travis.yml b/.travis.yml
index 66144283..8418d6a7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,7 @@ python:
 install:
     - sudo apt-get update -q
     - sudo apt-get install intltool desktop-file-utils
-    - "pip3 install pytest-cov minimock pycodestyle 'isort<5.0' requests pytest pytest-httpserver"
+    - pip3 install pytest-cov minimock pycodestyle isort requests pytest pytest-httpserver
     - python3 tools/localdepends.py
 script:
     - make lint
diff --git a/makefile b/makefile
index dc15bc0e..fb596370 100644
--- a/makefile
+++ b/makefile
@@ -66,11 +66,10 @@ unittest:
 	LC_ALL=C PYTHONPATH=src/ $(PYTEST) --ignore=tests --ignore=src/gpodder/utilwin32ctypes.py --doctest-modules src/gpodder/util.py src/gpodder/jsonconfig.py
 	LC_ALL=C PYTHONPATH=src/ $(PYTEST) tests --ignore=src/gpodder/utilwin32ctypes.py --ignore=src/mygpoclient --cov=gpodder
 
-# ISORTOPTS := -c share src/gpodder tools bin/* *.py # for isort >= 5.0
-ISORTOPTS := -rc -c share src/gpodder tools bin/* *.py
+ISORTOPTS := -c share src/gpodder tools bin/* *.py
 lint:
 	pycodestyle share src/gpodder tools bin/* *.py
-	isort -q $(ISORTOPTS) || isort -df $(ISORTOPTS)
+	isort -q $(ISORTOPTS) || isort --df $(ISORTOPTS)
 
 
 release: distclean
diff --git a/setup.cfg b/setup.cfg
index a9e0ed1d..c1af1bd4 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,5 +5,5 @@ select = W1, W2, W3, E11, E121, E122, E123, E124, E125, E127, E129, E13, E2, E3,
 max-line-length = 142
 
 [isort]
-known_third_party=cairo,comtypes,dbus,gi,github3,jinja2,kaa,magic,mutagen,mygpoclient,podcastparser,requests,youtube_dl
+known_third_party=dbus,gi,mutagen,cairo,requests,github3,jinja2,magic,youtube_dl,podcastparser,mygpoclient
 known_first_party=gpodder,soco