diff --git a/glibc233.patch b/glibc233.patch
index 1046dbe..edd7784 100644
--- a/glibc233.patch
+++ b/glibc233.patch
@@ -12,16 +12,13 @@ which caused regex parse errors. This particular line is now whitelisted
 as skipable. And any future unrecognised patterns will now issue
 warnings.
 ---
- PyInstaller/depend/utils.py | 12 ++++++++++++
- news/5540.bugfix.rst        |  3 +++
- 2 files changed, 15 insertions(+)
+ PyInstaller/depend/utils.py |   12 ++++++++++++
+ 1 file changed, 12 insertions(+)
  create mode 100644 news/5540.bugfix.rst
 
-diff --git a/PyInstaller/depend/utils.py b/PyInstaller/depend/utils.py
-index baffb2a9f3..95846f39d5 100644
 --- a/PyInstaller/depend/utils.py
 +++ b/PyInstaller/depend/utils.py
-@@ -399,6 +399,18 @@ def load_ldconfig_cache():
+@@ -397,6 +397,18 @@ def load_ldconfig_cache():
      for line in text:
          # :fixme: this assumes libary names do not contain whitespace
          m = pattern.match(line)
diff --git a/python-PyInstaller.changes b/python-PyInstaller.changes
index 8a9fb7b..e515264 100644
--- a/python-PyInstaller.changes
+++ b/python-PyInstaller.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Sep 16 10:21:46 UTC 2021 - Matej Cepl <mcepl@suse.com>
+
+- Skip TestDeeplyNested.testRegr for gh#pyinstaller/pyinstaller#4406
+
 -------------------------------------------------------------------
 Thu Apr  1 13:27:23 UTC 2021 - Markéta Machová <mmachova@suse.com>
 
diff --git a/python-PyInstaller.spec b/python-PyInstaller.spec
index 5c9b38f..c5dd2c8 100644
--- a/python-PyInstaller.spec
+++ b/python-PyInstaller.spec
@@ -39,7 +39,7 @@ Requires:       python-macholib >= 1.8
 Requires:       python-pefile >= 2017.8.1
 Requires:       python-setuptools
 Requires(post): update-alternatives
-Requires(postun): update-alternatives
+Requires(postun):update-alternatives
 Recommends:     upx
 %if %{with test}
 BuildRequires:  %{python_module Babel}
@@ -106,7 +106,8 @@ fi
 %check
 export LANG=en_US.UTF-8
 # test_get_co_using_ctypes, test_get_co_using_ctypes_from_extension, test_replace_paths_in_code broken with python 3.8 on PyInstall 3.6
-%pytest_arch -n auto tests/unit -k 'not (test_find_module or test_egg and not test_nspkg1 or test_get_co_using_ctypes or test_get_co_using_ctypes_from_extension or test_replace_paths_in_code)'
+# gh#pyinstaller/pyinstaller#4406 skip TestDeeplyNested.testRegr (it is just the only method in the class)
+%pytest_arch -n auto tests/unit -k 'not (test_find_module or test_egg and not test_nspkg1 or test_get_co_using_ctypes or test_get_co_using_ctypes_from_extension or test_replace_paths_in_code or TestDeeplyNested)'
 %endif
 
 %post