diff --git a/setup.cfg b/setup.cfg
index 66aa44b..89f3898 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -40,9 +40,8 @@ zip_safe = False
 setup_requires=setuptools>=42; wheel; setuptools_scm[toml]>=3.4
 install_requires=
     argopt
-    miutil[nii]>=0.1.0,!=0.4.0,!=0.4.1
+    miutil[nii,web]>=0.7.2
     setuptools  # pkg_resources
-    brainweb>=1.6.2
     numpy
     scipy
 include_package_data=True
@@ -53,7 +52,6 @@ dev=
     pre-commit
     twine
     wheel
-    miutil[web]>=0.7.0
     pytest
     pytest-cov
     pytest-timeout
diff --git a/spm12/utils.py b/spm12/utils.py
index da1036d..da67894 100644
--- a/spm12/utils.py
+++ b/spm12/utils.py
@@ -3,7 +3,9 @@
 from os import path
 from textwrap import dedent
 
+from miutil.fdio import extractall
 from miutil.mlab import get_engine
+from miutil.web import urlopen_cached
 from pkg_resources import resource_filename
 
 try:
@@ -37,21 +39,13 @@ def ensure_spm(name=None, cache="~/.spm12", version=12):
     if not eng.exist("spm_jobman"):
         log.warning("MATLAB could not find SPM.")
         try:
-            from zipfile import ZipFile
-
-            from brainweb import get_file
-
             log.info("Downloading to %s", cache)
-            fname = get_file(
-                "spm12.zip",
+            with urlopen_cached(
                 "https://www.fil.ion.ucl.ac.uk/"
                 "spm/download/restricted/eldorado/spm12.zip",
                 cache,
-                chunk_size=2 ** 17,
-            )
-            log.info("Extracting")
-            with ZipFile(fname) as fd:
-                fd.extractall(path=cache)
+            ) as fd:
+                extractall(fd, cache)
             eng.addpath(addpath)
             if not eng.exist("spm_jobman"):
                 raise RuntimeError("MATLAB could not find SPM.")