diff --git a/9f0e834b2e5eea5dfe21d5be4ea6a3df47baf0b9.patch b/9f0e834b2e5eea5dfe21d5be4ea6a3df47baf0b9.patch
new file mode 100644
index 0000000..2f0d6e9
--- /dev/null
+++ b/9f0e834b2e5eea5dfe21d5be4ea6a3df47baf0b9.patch
@@ -0,0 +1,64 @@
+From 9f0e834b2e5eea5dfe21d5be4ea6a3df47baf0b9 Mon Sep 17 00:00:00 2001
+From: Timo Furrer <timo.furrer@roche.com>
+Date: Wed, 20 Feb 2019 13:26:46 +0100
+Subject: [PATCH] Import ABCs from collections.abc. Closes #150
+
+---
+ .travis.yml                     | 10 +++++++---
+ sure/compat.py                  |  5 +++++
+ sure/old.py                     |  5 +----
+ tests/test_assertion_builder.py |  2 +-
+ 4 files changed, 14 insertions(+), 8 deletions(-)
+
+diff --git a/sure/compat.py b/sure/compat.py
+index df8d323..c53ab28 100644
+--- a/sure/compat.py
++++ b/sure/compat.py
+@@ -5,6 +5,11 @@
+ import six
+ from collections import OrderedDict
+ 
++try:
++    from collections.abc import Iterable
++except ImportError:
++    from collections import Iterable
++
+ from sure.terminal import red, green, yellow
+ 
+ 
+diff --git a/sure/old.py b/sure/old.py
+index e861b26..53e4ee4 100644
+--- a/sure/old.py
++++ b/sure/old.py
+@@ -22,10 +22,6 @@
+ from copy import deepcopy
+ from pprint import pformat
+ from functools import wraps
+-try:
+-    from collections import Iterable
+-except ImportError:
+-    Iterable = (list, dict, tuple, set)
+ 
+ try:
+     import __builtin__ as builtins
+@@ -43,6 +39,7 @@
+ from sure.core import _get_file_name
+ from sure.core import _get_line_number
+ from sure.core import itemize_length
++from sure.compat import Iterable
+ 
+ 
+ def identify_callable_location(callable_object):
+diff --git a/tests/test_assertion_builder.py b/tests/test_assertion_builder.py
+index 4dc00fc..c043648 100644
+--- a/tests/test_assertion_builder.py
++++ b/tests/test_assertion_builder.py
+@@ -137,7 +137,7 @@ def test_should_be_a():
+     ("this(None).should.be.none")
+ 
+     assert this(1).should.be.an(int)
+-    assert this([]).should.be.a('collections.Iterable')
++    assert this([]).should.be.a('sure.compat.Iterable')
+     assert this({}).should_not.be.a(list)
+ 
+     def opposite():
diff --git a/python-sure.spec b/python-sure.spec
index ef7dc14..18c79d8 100644
--- a/python-sure.spec
+++ b/python-sure.spec
@@ -7,7 +7,12 @@ Summary:        Utility belt for automated testing in Python
 
 License:        GPLv3+
 URL:            https://github.com/gabrielfalcao/sure
-Source0:        https://files.pythonhosted.org/packages/source/s/%{pypi_name}/%{pypi_name}-%{version}.tar.gz
+Source0:        %{pypi_source}
+
+# Python 3.9 compatibility
+# https://github.com/gabrielfalcao/sure/commit/9f0e834b2e5eea5dfe21d5be4ea6a3df47baf0b9
+Patch1:         9f0e834b2e5eea5dfe21d5be4ea6a3df47baf0b9.patch
+
 BuildArch:      noarch
 
 BuildRequires:  python3-devel
@@ -32,9 +37,7 @@ heavily inspired by should.js.
 
 
 %prep
-%setup -q -n %{pypi_name}-%{version}
-# Remove bundled egg-info
-rm -rf %{pypi_name}.egg-info
+%autosetup -p1 -n %{pypi_name}-%{version}
 
 
 %build