diff --git a/mingw-w64-python3-matplotlib/PKGBUILD b/mingw-w64-python3-matplotlib/PKGBUILD
index b5a7408c18..eff762d12f 100644
--- a/mingw-w64-python3-matplotlib/PKGBUILD
+++ b/mingw-w64-python3-matplotlib/PKGBUILD
@@ -3,7 +3,7 @@
 _realname=matplotlib
 pkgbase=mingw-w64-python3-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
-pkgver=3.0.3
+pkgver=3.1.0
 pkgrel=1
 pkgdesc="A python plotting library, making publication quality plots (mingw-w64)"
 arch=('any')
@@ -26,9 +26,11 @@ optdepends=("${MINGW_PACKAGE_PREFIX}-python3-pyqt5: Qt5Agg/Qt5Cairo backend"
             "${MINGW_PACKAGE_PREFIX}-python3-tornado: WebAgg backend")
 
 source=("${_realname}-${pkgver}.tar.gz"::"https://github.com/matplotlib/matplotlib/archive/v${pkgver}.tar.gz"
+        "https://jqueryui.com/resources/download/jquery-ui-1.12.1.zip"
         setupext.py.patch)
-sha256sums=('d384a58409c1c23b8760b6f3d84ebed2c936df7dcb82797e983faaf30ae4d69d'
-            '4a40f33ceda86f4a70d71fc97f28e799fe6973f9358fd9d1dac9b40cc2f0c7fc')
+sha256sums=('7b4173b611520d0635041639b1a5193acf44f79a7988181003756b4d350931e5'
+            'f8233674366ab36b2c34c577ec77a3d70cac75d2e387d8587f3836345c0f624d'
+            '329283ed24e3f91a628f204885d296dec1d8ad0e0dda2ef58a53a08c6ab8d959')
 
 prepare() {
   cd "${srcdir}/${_realname}-${pkgver}"
@@ -44,11 +46,16 @@ build() {
 }
 
 package() {
-   cd "${srcdir}/${_realname}-${pkgver}"
+  cd "${srcdir}/${_realname}-${pkgver}"
 
-   MSYS2_ARG_CONV_EXCL="--prefix=;--install-scripts=;--install-platlib=" \
-    ${MINGW_PREFIX}/bin/python3 setup.py install -O1 --skip-build \
-    --root="${pkgdir}" --prefix=${MINGW_PREFIX}
+  local pyver=$(${MINGW_PREFIX}/bin/python3 -c "import sys;sys.stdout.write('.'.join(map(str, sys.version_info[:2])))")
+  local query_dest="${pkgdir}${MINGW_PREFIX}/lib/python${pyver}/site-packages/matplotlib/backends/web_backend"
+  mkdir -p "${query_dest}"
+  cp -R "${srcdir}/jquery-ui-1.12.1" "${query_dest}"
 
-   install -Dm644 doc/users/license.rst "${pkgdir}${MINGW_PREFIX}"/share/licenses/python3-matplotlib/LICENSE
+  MSYS2_ARG_CONV_EXCL="--prefix=;--install-scripts=;--install-platlib=" \
+   ${MINGW_PREFIX}/bin/python3 setup.py install -O1 --skip-build \
+   --root="${pkgdir}" --prefix=${MINGW_PREFIX}
+
+  install -Dm644 doc/users/license.rst "${pkgdir}${MINGW_PREFIX}"/share/licenses/python3-matplotlib/LICENSE
 }
diff --git a/mingw-w64-python3-matplotlib/setupext.py.patch b/mingw-w64-python3-matplotlib/setupext.py.patch
index b5e6d33637..77585e5763 100644
--- a/mingw-w64-python3-matplotlib/setupext.py.patch
+++ b/mingw-w64-python3-matplotlib/setupext.py.patch
@@ -1,37 +1,28 @@
---- matplotlib-3.0.0/setupext.py.orig	2018-09-18 05:17:52.000000000 +0200
-+++ matplotlib-3.0.0/setupext.py	2018-09-20 12:51:06.529116400 +0200
-@@ -22,6 +22,7 @@
- import setuptools
- import versioneer
+--- matplotlib-3.1.0/setupext.py.orig	2019-05-18 03:55:28.000000000 +0200
++++ matplotlib-3.1.0/setupext.py	2019-05-19 11:31:01.633173900 +0200
+@@ -24,6 +24,7 @@
+ 
+ _log = logging.getLogger(__name__)
  
 +MSYS = "MSYSTEM" in os.environ
  
  def _get_xdg_cache_dir():
      """
-@@ -267,7 +268,7 @@
-         """
-         Determines whether pkg-config exists on this machine.
-         """
+@@ -220,7 +221,7 @@
+     def __init__(self):
+         """Determines whether pkg-config exists on this machine."""
+         self.pkg_config = None
+-        if sys.platform != 'win32':
++        if sys.platform != 'win32' or MSYS:
+             pkg_config = os.environ.get('PKG_CONFIG', 'pkg-config')
+             if shutil.which(pkg_config) is not None:
+                 self.pkg_config = pkg_config
+@@ -276,7 +277,7 @@
+ 
+         # conda Windows header and library paths.
+         # https://github.com/conda/conda/issues/2312 re: getting the env dir.
 -        if sys.platform == 'win32':
 +        if sys.platform == 'win32' and not MSYS:
-             self.has_pkgconfig = False
-         else:
-             self.pkg_config = os.environ.get('PKG_CONFIG', 'pkg-config')
-@@ -946,7 +947,7 @@
-         if options.get('local_freetype'):
-             return "Using local version for testing"
- 
--        if sys.platform == 'win32':
-+        if sys.platform == 'win32' and not MSYS:
-             try:
-                 check_include_file(get_include_dirs(), 'ft2build.h', 'freetype')
-             except CheckFailed:
-@@ -1176,7 +1177,7 @@
-         }
- 
-     def check(self):
--        if sys.platform == 'win32':
-+        if sys.platform == 'win32' and not MSYS:
-             check_include_file(get_include_dirs(), 'png.h', 'png')
-             return 'Using unknown version found on system.'
- 
+             conda_env_path = (os.getenv('CONDA_PREFIX')  # conda >= 4.1
+                               or os.getenv('CONDA_DEFAULT_ENV'))  # conda < 4.1
+             if conda_env_path and os.path.isdir(conda_env_path):