 -    "sympy",
 -    "kwant>=1.3,<2.0",
 -    "mpi4py>=2.0",
--    "dill",
 -    "tinyarray",
 -    "kwantspectrum",
 +    "cython",

diff --git a/setup.py b/setup.py
index 1571d3c..f868a37 100755
--- a/setup.py
+++ b/setup.py
@@ -450,15 +450,9 @@ class tkwant_sdist(sdist):
 ################ requirements
 
 requirements = (

 )
 
 test_requirements = (

