diff --git a/.gitignore b/.gitignore
index ebaa52e..c7b54a6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /Diff-0.2.0.tar.gz
 /Diff-0.3.0.tar.gz
 /Diff-0.3.4.tar.gz
+/Diff-0.4.0.tar.gz
diff --git a/ghc-Diff.spec b/ghc-Diff.spec
index 47238a5..6b25e9a 100644
--- a/ghc-Diff.spec
+++ b/ghc-Diff.spec
@@ -5,8 +5,8 @@
 %global pkgver %{pkg_name}-%{version}
 
 Name:           ghc-%{pkg_name}
-Version:        0.3.4
-Release:        13%{?dist}
+Version:        0.4.0
+Release:        1%{?dist}
 Summary:        O(ND) diff algorithm in Haskell
 
 License:        BSD
@@ -111,6 +111,9 @@ This package provides the Haskell %{pkg_name} profiling library.
 
 
 %changelog
+* Sun Jun 07 2020 Jens Petersen <petersen@redhat.com> - 0.4.0-1
+- update to 0.4.0
+
 * Tue Jan 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.3.4-13
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
 
diff --git a/sources b/sources
index 0aaf6cd..ad1fdfb 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-a1806f2218e169fc6bd1c3a8ab082365  Diff-0.3.4.tar.gz
+SHA512 (Diff-0.4.0.tar.gz) = 6a48a234d3140bc8c641cdf649a1f0daa39ab4de4064435dcbb15a9ea52994c967aadc8584f70aab89ef78e17ecc66b8ce3d8dd2157eb5b85277dfff80fd608c