diff --git a/SPECS/python-attrs/python-attrs.signatures.json b/SPECS/python-attrs/python-attrs.signatures.json
index d1e0d4066d..0aed1bfb54 100644
--- a/SPECS/python-attrs/python-attrs.signatures.json
+++ b/SPECS/python-attrs/python-attrs.signatures.json
@@ -1,5 +1,5 @@
 {
  "Signatures": {
-  "attrs-18.2.0.tar.gz": "10cbf6e27dbce8c30807caf056c8eb50917e0eaafe86347671b57254006c3e69"
+  "attrs-21.4.0.tar.gz": "5bd6d2938b7e8019e319b7f451f4ec3a5ef6293b228146387d002311ae9b920d"
  }
 }
\ No newline at end of file
diff --git a/SPECS/python-attrs/python-attrs.spec b/SPECS/python-attrs/python-attrs.spec
index d1a9c9e624..7d333918ba 100644
--- a/SPECS/python-attrs/python-attrs.spec
+++ b/SPECS/python-attrs/python-attrs.spec
@@ -1,13 +1,18 @@
 Summary:        Attributes without boilerplate.
 Name:           python-attrs
-Version:        18.2.0
-Release:        10%{?dist}
+Version:        21.4.0
+Release:        1%{?dist}
 License:        MIT
 Vendor:         Microsoft Corporation
 Distribution:   Mariner
 Group:          Development/Languages/Python
 URL:            https://pypi.python.org/pypi/attrs
-Source0:        https://files.pythonhosted.org/packages/0f/9e/26b1d194aab960063b266170e53c39f73ea0d0d3f5ce23313e0ec8ee9bdf/attrs-%{version}.tar.gz
+Source0:        https://github.com/%{name}/attrs/archive/refs/tags/%{version}.tar.gz#/attrs-%{version}.tar.gz
+BuildRequires:  python3-devel
+BuildRequires:  python3-setuptools
+%if %{with_check}
+BuildRequires:  python3-pip
+%endif
 BuildArch:      noarch
 
 %description
@@ -15,15 +20,6 @@ Attributes without boilerplate.
 
 %package -n     python3-attrs
 Summary:        Attributes without boilerplate.
-BuildRequires:  python3-devel
-BuildRequires:  python3-setuptools
-BuildRequires:  python3-xml
-%if %{with_check}
-BuildRequires:  curl-devel
-BuildRequires:  openssl-devel
-BuildRequires:  python3-pip
-BuildRequires:  python3-zope-interface
-%endif
 Requires:       python3
 
 %description -n python3-attrs
@@ -39,8 +35,7 @@ Attributes without boilerplate.
 %py3_install
 
 %check
-# Tests are only supported with Python3
-pip3 install pytest hypothesis==4.38.0 tox
+pip3 install tox
 LANG=en_US.UTF-8 tox -e py%{python3_version_nodots}
 
 %files -n python3-attrs
@@ -49,6 +44,10 @@ LANG=en_US.UTF-8 tox -e py%{python3_version_nodots}
 %{python3_sitelib}/*
 
 %changelog
+* Wed Apr 13 2022 Olivia Crain <oliviacrain@microsoft.com> - 21.4.0-1
+- Upgrade to latest upstream version
+- Simplify test setup and requirements
+
 * Tue Mar 15 2022 Muhammad Falak <mwani@microsoft.com> - 18.2.0-10
 - Use `py%{python3_version_nodots}` instead of harcoding `py39`
 
diff --git a/cgmanifest.json b/cgmanifest.json
index b5917ec236..8011e3d83e 100644
--- a/cgmanifest.json
+++ b/cgmanifest.json
@@ -21964,8 +21964,8 @@
         "type": "other",
         "other": {
           "name": "python-attrs",
-          "version": "18.2.0",
-          "downloadUrl": "https://files.pythonhosted.org/packages/0f/9e/26b1d194aab960063b266170e53c39f73ea0d0d3f5ce23313e0ec8ee9bdf/attrs-18.2.0.tar.gz"
+          "version": "21.4.0",
+          "downloadUrl": "https://github.com/python-attrs/attrs/archive/refs/tags/21.4.0.tar.gz"
         }
       }
     },