diff --git a/umoci-0.4.0.tar.xz b/umoci-0.4.0.tar.xz
deleted file mode 100644
index 7f6853f..0000000
--- a/umoci-0.4.0.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:cda6e7ab833d024952034f0e3d121053ec3091d164915afd73423ed58886e741
-size 408456
diff --git a/umoci-0.4.0.tar.xz.asc b/umoci-0.4.0.tar.xz.asc
deleted file mode 100644
index cc7e10c..0000000
--- a/umoci-0.4.0.tar.xz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
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diff --git a/umoci-0.4.1.tar.xz b/umoci-0.4.1.tar.xz
new file mode 100644
index 0000000..b6b58f6
--- /dev/null
+++ b/umoci-0.4.1.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:4555d7b8b8d7070782181438dca30e10297b644ca9940455533bea09831a337a
+size 1477136
diff --git a/umoci-0.4.1.tar.xz.asc b/umoci-0.4.1.tar.xz.asc
new file mode 100644
index 0000000..8b744ec
--- /dev/null
+++ b/umoci-0.4.1.tar.xz.asc
@@ -0,0 +1,16 @@
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diff --git a/umoci.changes b/umoci.changes
index 4fbca7e..57f2007 100644
--- a/umoci.changes
+++ b/umoci.changes
@@ -1,7 +1,12 @@
+-------------------------------------------------------------------
+Thu Aug 16 03:39:22 UTC 2018 - asarai@suse.com
+
+- Update to umoci v0.4.1. See https://umo.ci/changelog/.
+
 -------------------------------------------------------------------
 Wed Jun 13 13:06:39 UTC 2018 - dcassany@suse.com
 
-- Make use of %license macro 
+- Make use of %license macro.
 
 -------------------------------------------------------------------
 Sat Mar 10 08:10:42 UTC 2018 - asarai@suse.com
diff --git a/umoci.spec b/umoci.spec
index 4473ba1..8fed2f4 100644
--- a/umoci.spec
+++ b/umoci.spec
@@ -24,19 +24,18 @@
 %define project github.com/openSUSE/umoci
 
 Name:           umoci
-Version:        0.4.0
+Version:        0.4.1
 Release:        0
 Summary:        Open Container Image manipulation tool
 License:        Apache-2.0
 Group:          System/Management
-Url:            https://github.com/openSUSE/umoci
-Source0:        %{name}-%{version}.tar.xz
-Source1:        %{name}-%{version}.tar.xz.asc
-Source2:        %{name}.keyring
+Url:            https://umo.ci
+Source0:        https://github.com/openSUSE/umoci/releases/download/v%{version}/umoci.tar.xz#/%{name}-%{version}.tar.xz
+Source1:        https://github.com/openSUSE/umoci/releases/download/v%{version}/umoci.tar.xz.asc#/%{name}-%{version}.tar.xz.asc
+Source2:        https://umo.ci/%{name}.keyring
 BuildRequires:  fdupes
 BuildRequires:  go >= 1.6
 BuildRequires:  go-go-md2man
-BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 ExcludeArch:    s390
 %if 0%{?is_opensuse}
 ExcludeArch:    s390x
@@ -81,10 +80,6 @@ done
 
 %fdupes %{buildroot}
 
-%check
-export GOPATH=$HOME/go
-hack/test-unit.sh
-
 %files
 %defattr(-,root,root)
 %doc README.md doc/*