diff --git a/always-cythonize.patch b/always-cythonize.patch
new file mode 100644
index 0000000..a7a03dd
--- /dev/null
+++ b/always-cythonize.patch
@@ -0,0 +1,13 @@
+Index: imagecodecs-2020.5.30/setup.py
+===================================================================
+--- imagecodecs-2020.5.30.orig/setup.py
++++ imagecodecs-2020.5.30/setup.py
+@@ -71,7 +71,7 @@ if 'sdist' in sys.argv:
+ 
+ 
+ OPTIONS = {
+-    'cythonize': sys.version_info >= (3, 10),
++    'cythonize': True,
+     'include_dirs': ['imagecodecs'],
+     'library_dirs': [],
+     'libraries': ['m'] if sys.platform != 'win32' else [],
diff --git a/imagecodecs-2019.5.22.tar.gz b/imagecodecs-2019.5.22.tar.gz
deleted file mode 100644
index 08bbf49..0000000
--- a/imagecodecs-2019.5.22.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:7cd689549b41dc979fed1a26e668a080e67b276b029d179ae3a9eb27a0187719
-size 6487114
diff --git a/imagecodecs-2020.5.30.tar.gz b/imagecodecs-2020.5.30.tar.gz
new file mode 100644
index 0000000..ac896fb
--- /dev/null
+++ b/imagecodecs-2020.5.30.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c8c776922d3a60824d8d3d31ba674a250d1b4d429e81349b5c88c34d4353ddb5
+size 8993252
diff --git a/python-imagecodecs.changes b/python-imagecodecs.changes
index 012749d..d839e35 100644
--- a/python-imagecodecs.changes
+++ b/python-imagecodecs.changes
@@ -1,3 +1,18 @@
+-------------------------------------------------------------------
+Fri Aug 28 08:37:24 UTC 2020 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Add patch to enforce cythonization:
+  * always-cythonize.patch
+- Add patch to locate zopfli headers properly:
+  * zopfli-headers.patch
+
+-------------------------------------------------------------------
+Fri Aug 28 08:20:58 UTC 2020 - Tomáš Chvátal <tchvatal@suse.com>
+
+- Update to 2020.5.30:
+  * pythhon3 only
+  * add support for more codecs
+
 -------------------------------------------------------------------
 Mon May 25 10:59:24 UTC 2020 - Petr Gajdos <pgajdos@suse.com>
 
diff --git a/python-imagecodecs.spec b/python-imagecodecs.spec
index 1513127..02e6f83 100644
--- a/python-imagecodecs.spec
+++ b/python-imagecodecs.spec
@@ -19,47 +19,56 @@
 %{?!python_module:%define python_module() python-%{**} python3-%{**}}
 %define         skip_python2 1
 Name:           python-imagecodecs
-Version:        2019.5.22
+Version:        2020.5.30
 Release:        0
 Summary:        Image transformation, compression, and decompression codecs
 License:        BSD-3-Clause
-Group:          Development/Languages/Python
 URL:            https://www.lfd.uci.edu/~gohlke/
 Source:         https://files.pythonhosted.org/packages/source/i/imagecodecs/imagecodecs-%{version}.tar.gz
-BuildRequires:  %{python_module Cython}
+Patch0:         always-cythonize.patch
+Patch1:         zopfli-headers.patch
+BuildRequires:  %{python_module Cython >= 0.29.19}
 BuildRequires:  %{python_module Pillow}
 BuildRequires:  %{python_module blosc}
 BuildRequires:  %{python_module lz4}
 BuildRequires:  %{python_module matplotlib >= 2.2}
-BuildRequires:  %{python_module numpy-devel >= 1.11.3}
+BuildRequires:  %{python_module numpy-devel >= 1.15.1}
 BuildRequires:  %{python_module pytest}
 BuildRequires:  %{python_module scikit-image}
-BuildRequires:  %{python_module setuptools}
+BuildRequires:  %{python_module setuptools >= 18.0}
+BuildRequires:  %{python_module tifffile >= 2020.5.25}
 BuildRequires:  %{python_module zstd}
 BuildRequires:  dos2unix
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
+BuildRequires:  giflib-devel
 BuildRequires:  jxrlib-devel
-BuildRequires:  libjpeg62-devel
+BuildRequires:  libaec-devel
+BuildRequires:  libzopfli-devel
 BuildRequires:  pkgconfig
 BuildRequires:  python-rpm-macros
+BuildRequires:  snappy-devel
 BuildRequires:  pkgconfig(blosc)
 BuildRequires:  pkgconfig(bzip2)
 BuildRequires:  pkgconfig(lcms2)
+BuildRequires:  pkgconfig(libbrotlicommon)
+BuildRequires:  pkgconfig(libjpeg)
 BuildRequires:  pkgconfig(liblz4)
 BuildRequires:  pkgconfig(liblzma)
 BuildRequires:  pkgconfig(libopenjp2)
 BuildRequires:  pkgconfig(libpng)
+BuildRequires:  pkgconfig(libtiff-4)
 BuildRequires:  pkgconfig(libwebp)
 BuildRequires:  pkgconfig(libzstd)
 BuildRequires:  pkgconfig(zlib)
-Requires:       python-numpy >= 1.11.3
+Requires:       python-numpy >= 1.15.1
 Requires(post): update-alternatives
 Requires(postun): update-alternatives
 Recommends:     python-Pillow
 Recommends:     python-blosc
 Recommends:     python-lz4
-Recommends:     python-matplotlib >= 2.2
+Recommends:     python-matplotlib >= 3.1
+Recommends:     python-tifffile >= 2020.5.25
 Recommends:     python-zstd
 %python_subpackages
 
@@ -75,9 +84,9 @@ Delta, XOR Delta, Floating Point Predictor, and Bitorder reversal.
 
 %prep
 %setup -q -n imagecodecs-%{version}
+%autopatch -p1
+
 dos2unix README.rst
-# prevent ImportError in CLI due to missing tifffile
-sed -i '/from tifffile import imshow/d' imagecodecs/__main__.py
 
 %build
 export CFLAGS="%{optflags}"
diff --git a/zopfli-headers.patch b/zopfli-headers.patch
new file mode 100644
index 0000000..392d4b0
--- /dev/null
+++ b/zopfli-headers.patch
@@ -0,0 +1,13 @@
+Index: imagecodecs-2020.5.30/imagecodecs/zopfli.pxd
+===================================================================
+--- imagecodecs-2020.5.30.orig/imagecodecs/zopfli.pxd
++++ imagecodecs-2020.5.30/imagecodecs/zopfli.pxd
+@@ -4,7 +4,7 @@
+ # Cython declarations for the `Zopfli 1.0.3` library.
+ # https://github.com/google/zopfli
+ 
+-cdef extern from 'zopfli/zopfli.h':
++cdef extern from 'zopfli.h':
+ 
+     ctypedef struct ZopfliOptions:
+         int verbose