diff --git a/setup.cfg b/setup.cfg
index 5fe1f46..caee3d1 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -43,6 +43,7 @@ classifiers=
 setup_requires=setuptools>=42; wheel; setuptools_scm[toml]>=3.4
 install_requires=
     pathlib2; python_version <= "2.7"
+    tqdm
 packages=find:
 python_requires=>=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*, !=3.5.*
 [options.extras_require]
@@ -58,7 +59,7 @@ dev=
 nii = nibabel; numpy
 plot = matplotlib; numpy; scipy
 cuda = argopt; pynvml
-web = requests; tqdm
+web = requests
 mbeautify = argopt; %(web)s
 [options.entry_points]
 console_scripts =