diff -Nru nibabel-3.2.1/debian/changelog nibabel-3.2.1/debian/changelog
--- nibabel-3.2.1/debian/changelog	2020-12-19 13:48:49.000000000 +0000
+++ nibabel-3.2.1/debian/changelog	2020-12-21 14:10:02.000000000 +0000
@@ -1,3 +1,11 @@
+nibabel (3.2.1-2) unstable; urgency=medium
+
+  * d/patches
+    - 983.patch to include https://github.com/nipy/nibabel/pull/983
+      addressing failing test due to mocking  on older systems
+
+ -- Yaroslav Halchenko <debian@onerussian.com>  Mon, 21 Dec 2020 09:10:02 -0500
+
 nibabel (3.2.1-1) unstable; urgency=medium
 
   * Fresh upstream release
diff -Nru nibabel-3.2.1/debian/patches/983.patch nibabel-3.2.1/debian/patches/983.patch
--- nibabel-3.2.1/debian/patches/983.patch	1970-01-01 00:00:00.000000000 +0000
+++ nibabel-3.2.1/debian/patches/983.patch	2020-12-21 14:10:02.000000000 +0000
@@ -0,0 +1,41 @@
+From 84c7cf444e0c14fb6706af92e5f96f85c8aadf3d Mon Sep 17 00:00:00 2001
+From: "Christopher J. Markiewicz" <markiewicz@stanford.edu>
+Date: Sun, 20 Dec 2020 12:12:12 -0500
+Origin: https://github.com/nipy/nibabel/pull/983
+Subject: [PATCH] TEST: Use more constrained mock when testing optpkg
+
+The existing mock raised errors on any import except a whitelisted
+unittest. Because pytest monkeypatches the Python interpreter and then
+performs imports within the patched functions, this breaks in Pytest
+3.10. Move to an import that blacklists the specific module we're
+testing.
+
+---
+ nibabel/tests/test_optpkg.py | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/nibabel/tests/test_optpkg.py b/nibabel/tests/test_optpkg.py
+index 925180ce6..2bc702210 100644
+--- a/nibabel/tests/test_optpkg.py
++++ b/nibabel/tests/test_optpkg.py
+@@ -39,14 +39,14 @@ def test_basic():
+     # We never have package _not_a_package
+     assert_bad('_not_a_package')
+ 
+-    # setup_module imports unittest, so make sure we don't disrupt that
++    # Only disrupt imports for "nottriedbefore" package
+     orig_import = builtins.__import__
+     def raise_Exception(*args, **kwargs):
+-        if args[0] == 'unittest':
+-            return orig_import(*args, **kwargs)
+-        raise Exception(
+-            "non ImportError could be thrown by some malfunctioning module "
+-            "upon import, and optional_package should catch it too")
++        if args[0] == 'nottriedbefore':
++            raise Exception(
++                "non ImportError could be thrown by some malfunctioning module "
++                "upon import, and optional_package should catch it too")
++        return orig_import(*args, **kwargs)
+     with mock.patch.object(builtins, '__import__', side_effect=raise_Exception):
+         assert_bad('nottriedbefore')
+ 
diff -Nru nibabel-3.2.1/debian/patches/series nibabel-3.2.1/debian/patches/series
--- nibabel-3.2.1/debian/patches/series	2020-12-19 13:48:49.000000000 +0000
+++ nibabel-3.2.1/debian/patches/series	2020-12-21 14:10:02.000000000 +0000
@@ -2,3 +2,4 @@
 deb_localmathjax
 no_doc_sources
 fix_version_for_sphinx_doc.patch
+983.patch