diff --git a/.gitignore b/.gitignore
index 8773fc1..3d93ba0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@ libev-3.9.tar.gz
 /libev-4.19.tar.gz
 /libev-4.20.tar.gz
 /libev-4.22.tar.gz
+/libev-4.23.tar.gz
diff --git a/libev.spec b/libev.spec
index d0906eb..3c5b749 100644
--- a/libev.spec
+++ b/libev.spec
@@ -3,12 +3,11 @@
 
 Name:             libev
 Summary:          High-performance event loop/event model with lots of features
-Version:          4.22
+Version:          4.23
 Release:          1%{?dist}
 License:          BSD or GPLv2+
 URL:              http://software.schmorp.de/pkg/libev.html
 Source0:          http://dist.schmorp.de/libev/Attic/%{name}-%{version}.tar.gz
-Patch0:           libev-4.20-Respect-the-CFLAGS-if-defined.patch
 
 BuildRequires:    autoconf
 BuildRequires:    automake
@@ -26,7 +25,6 @@ Libev is modeled (very loosely) after libevent and the Event Perl
 module, but is faster, scales better and is more correct, and also more
 featureful. And also smaller.
 
-
 %package devel
 Summary:          Development headers for libev
 Requires:         %{name}%{?_isa} = %{version}-%{release}
@@ -34,7 +32,6 @@ Requires:         %{name}%{?_isa} = %{version}-%{release}
 %description devel
 This package contains the development headers and libraries for libev.
 
-
 %package libevent-devel
 Summary:          Compatibility development header with libevent for %{name}.
 Requires:         %{name}-devel%{?_isa} = %{version}-%{release}
@@ -46,7 +43,6 @@ Conflicts:        libevent-devel
 This package contains a development header to make libev compatible with
 libevent.
 
-
 %package source
 Summary:          High-performance event loop/event model with lots of features
 %if 0%{?fedora} >= 12 || 0%{?rhel} > 5
@@ -57,14 +53,13 @@ Provides:         bundled(libecb) = 1.05
 %description source
 This package contains the source code for libev.
 
-
 %prep
 %autosetup -p0
 autoreconf -vfi
 
 %build
 %configure --disable-static --with-pic
-make %{?_smp_mflags}
+%make_build
 
 %check
 make check
@@ -100,6 +95,9 @@ install -p -m 0644 Changes ev.pod LICENSE README %{inst_srcdir}
 %{source_dir}
 
 %changelog
+* Thu Nov 17 2016  Fabian Affolter <mail@fabian-.affolter.ch> - 4.23-1
+- Update to latest upstream release 4.23 (rhbz#1395925)
+
 * Mon Mar 28 2016 Igor Gnatenko <i.gnatenko.brain@gmail.com> - 4.22-1
 - Update to 4.22 (RHBZ #1234039)
 
diff --git a/sources b/sources
index bf5c62d..d6e8dbd 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-bf0007e37240103d3c2be80ca9bee3f9  libev-4.22.tar.gz
+f1dbf786ead8307e0d4f5f68f2f8526c  libev-4.23.tar.gz