diff --git a/.gitignore b/.gitignore
index 099c62f..1ec031a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,4 @@
 /jwcrypto-0.3.0.tar.gz
 /jwcrypto-0.3.1.tar.gz
 /jwcrypto-0.3.2.tar.gz
+/jwcrypto-0.4.1.tar.gz
diff --git a/jwcrypto-0.3.2.tar.gz.sha512sum.txt b/jwcrypto-0.3.2.tar.gz.sha512sum.txt
deleted file mode 100644
index cbb045a..0000000
--- a/jwcrypto-0.3.2.tar.gz.sha512sum.txt
+++ /dev/null
@@ -1 +0,0 @@
-3a66407a8bb590f8fdd02d87a9c2991118c7a332e4210f08e6af2b38b813ec2bc30afbcea75270d1ee0f70d0fff29fe98731270a8a457b2ca87e576ebe3046e9  jwcrypto-0.3.2.tar.gz
diff --git a/python-jwcrypto.spec b/python-jwcrypto.spec
index d35d8a2..13b8937 100644
--- a/python-jwcrypto.spec
+++ b/python-jwcrypto.spec
@@ -5,27 +5,26 @@
 %define module_name jwcrypto
 
 Name:           python-jwcrypto
-Version:        0.3.2
-Release:        3%{?dist}
+Version:        0.4.1
+Release:        1%{?dist}
 Summary:        Implements JWK,JWS,JWE specifications using python-cryptography
 
 License:        LGPLv3+
-URL:            https://github.com/simo5/%{module_name}
-Source0:        https://github.com/simo5/%{module_name}/releases/download/v%{version}/jwcrypto-%{version}.tar.gz
-Source1:        https://github.com/simo5/%{module_name}/releases/download/v%{version}/jwcrypto-%{version}.tar.gz.sha512sum.txt
+URL:            https://github.com/latchset/%{module_name}
+Source0:        https://github.com/latchset/%{module_name}/releases/download/v%{version}/%{module_name}-%{version}.tar.gz
 
 BuildArch:      noarch
-BuildRequires:  python-devel
-BuildRequires:  python-setuptools
-BuildRequires:  python-cryptography
-BuildRequires:  python-nose
-Requires:       python-cryptography
+BuildRequires:  python2-devel
+BuildRequires:  python2-setuptools
+BuildRequires:  python2-cryptography
+BuildRequires:  python2-pytest
+Requires:       python2-cryptography
 
 %if 0%{?with_python3}
 BuildRequires:      python3-devel
 BuildRequires:      python3-setuptools
 BuildRequires:      python3-cryptography
-BuildRequires:      python3-nose
+BuildRequires:      python3-pytest
 %endif
 
 %description
@@ -41,7 +40,6 @@ Implements JWK,JWS,JWE specifications using python3-cryptography
 %endif
 
 %prep
-grep `sha512sum %{SOURCE0}` %{SOURCE1} || (echo "Checksum invalid!" && exit 1)
 %setup -q -n %{module_name}-%{version}
 
 
@@ -53,7 +51,10 @@ grep `sha512sum %{SOURCE0}` %{SOURCE1} || (echo "Checksum invalid!" && exit 1)
 
 
 %check
-nosetests
+pytest-2 jwcrypto/test*.py
+%if 0%{?with_python3}
+pytest-3 jwcrypto/test*.py
+%endif
 
 
 %install
@@ -83,6 +84,9 @@ rm -rf %{buildroot}%{python3_sitelib}/%{module_name}/__pycache__/tests{,-cookboo
 
 
 %changelog
+* Mon Jul 24 2017 Christian Heimes <cheimes@redhat.com> - 0.4.1-1
+- Upstream release 0.4.1
+
 * Sat Feb 11 2017 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.2-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_26_Mass_Rebuild
 
diff --git a/sources b/sources
index 134fb6f..d51c8d8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-b171735481fa5103ca237a6ad4dceb47  jwcrypto-0.3.2.tar.gz
+SHA512 (jwcrypto-0.4.1.tar.gz) = 7059492cecb9fd722eaa947f29db3c190a627ae8f90f45f2c1e7feca312bd8951c3279f4c8d88a29a41240f75db42e8fc11055d075b920e70a1c13060c275e93