diff --git a/ghc-mustache.changes b/ghc-mustache.changes
index e65dcfe..e2bd44e 100644
--- a/ghc-mustache.changes
+++ b/ghc-mustache.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Thu Dec 19 09:58:24 UTC 2019 - psimons@suse.com
+
+- Update mustache to version 2.3.1.
+  Upstream has not updated the file "CHANGELOG.md" since the last
+  release.
+
+-------------------------------------------------------------------
+Fri Nov  8 16:14:16 UTC 2019 - Peter Simons <psimons@suse.com>
+
+- Drop obsolete group attributes.
+
 -------------------------------------------------------------------
 Sat Oct 20 11:31:45 UTC 2018 - Peter Simons <psimons@suse.com>
 
diff --git a/ghc-mustache.spec b/ghc-mustache.spec
index 5d49201..e71e153 100644
--- a/ghc-mustache.spec
+++ b/ghc-mustache.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package ghc-mustache
 #
-# Copyright (c) 2018 SUSE LINUX GmbH, Nuernberg, Germany.
+# Copyright (c) 2019 SUSE LINUX GmbH, Nuernberg, Germany.
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -19,11 +19,10 @@
 %global pkg_name mustache
 %bcond_with tests
 Name:           ghc-%{pkg_name}
-Version:        2.3.0
+Version:        2.3.1
 Release:        0
 Summary:        A mustache template parser library
 License:        BSD-3-Clause
-Group:          Development/Libraries/Haskell
 URL:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
 BuildRequires:  chrpath
@@ -66,7 +65,6 @@ Implements the mustache spec version 1.1.3.
 
 %package devel
 Summary:        Haskell %{pkg_name} library development files
-Group:          Development/Libraries/Haskell
 Requires:       %{name} = %{version}-%{release}
 Requires:       ghc-compiler = %{ghc_version}
 Requires(post): ghc-compiler = %{ghc_version}
diff --git a/mustache-2.3.0.tar.gz b/mustache-2.3.0.tar.gz
deleted file mode 100644
index 5b02011..0000000
--- a/mustache-2.3.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:018863e578e971e393edc65dd7e0ed92a0e37fc152a47bb379fd8abd59537be0
-size 19986
diff --git a/mustache-2.3.1.tar.gz b/mustache-2.3.1.tar.gz
new file mode 100644
index 0000000..0a362d3
--- /dev/null
+++ b/mustache-2.3.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:ac8bf93d36fc766f54a54b72ddf71d1ab90864ca86bdce3415d2e69823fdb348
+size 20207