diff --git a/mingw-w64-python-jupyter-nbformat/PKGBUILD b/mingw-w64-python-jupyter-nbformat/PKGBUILD
index 189b5f5952..a7d2fa800e 100644
--- a/mingw-w64-python-jupyter-nbformat/PKGBUILD
+++ b/mingw-w64-python-jupyter-nbformat/PKGBUILD
@@ -7,39 +7,42 @@ provides=("${MINGW_PACKAGE_PREFIX}-python3-jupyter-${_realname}")
 conflicts=("${MINGW_PACKAGE_PREFIX}-python3-jupyter-${_realname}")
 replaces=("${MINGW_PACKAGE_PREFIX}-python3-jupyter-${_realname}")
 pkgver=5.1.3
-pkgrel=2
+pkgrel=3
 pkgdesc="The base implementation of the Jupyter Notebook format and Python APIs for working with notebooks (mingw-w64)"
-url="https://pypi.python.org/pypi/nbformat"
+url="https://github.com/jupyter/nbformat"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
 license=('BSD')
-depends=("${MINGW_PACKAGE_PREFIX}-python"
-         "${MINGW_PACKAGE_PREFIX}-python-traitlets"
-         "${MINGW_PACKAGE_PREFIX}-python-jsonschema"
-         "${MINGW_PACKAGE_PREFIX}-python-jupyter_core")
-makedepends=("${MINGW_PACKAGE_PREFIX}-python-setuptools")
-source=(${_realname}-${pkgver}.tar.gz::https://github.com/jupyter/nbformat/archive/${pkgver}.tar.gz)
+depends=(
+    ${MINGW_PACKAGE_PREFIX}-python
+    ${MINGW_PACKAGE_PREFIX}-python-jsonschema
+    ${MINGW_PACKAGE_PREFIX}-python-jupyter_core
+    ${MINGW_PACKAGE_PREFIX}-python-pywin32
+    ${MINGW_PACKAGE_PREFIX}-python-traitlets)
+makedepends=(
+    ${MINGW_PACKAGE_PREFIX}-python-setuptools)
+source=("${_realname}-${pkgver}.tar.gz::https://github.com/jupyter/nbformat/archive/${pkgver}.tar.gz")
 sha256sums=('437b72e20eaa76230cdfe48cf388551a1ebc5880e9251aa7f614dbc4680c9ea3')
 
 prepare() {
-  rm -rf python-build-${CARCH} | true
-  cp -r "${_realname}-${pkgver}" "python-build-${CARCH}"
+  cd "${srcdir}"
+  rm -rf python-build-${MSYSTEM} | true
+  cp -r "${_realname}-${pkgver}" "python-build-${MSYSTEM}"
 }
 
 build() {
-
-  msg "Python build for ${CARCH}"
-  cd "${srcdir}/python-build-${CARCH}"
+  msg "Python build for ${MSYSTEM}"
+  cd "${srcdir}/python-build-${MSYSTEM}"
   ${MINGW_PREFIX}/bin/python setup.py build
-
 }
 
 package() {
-  cd ${srcdir}/"python-build-${CARCH}"
+  cd "${srcdir}/python-build-${MSYSTEM}"
   MSYS2_ARG_CONV_EXCL="--prefix=;--install-scripts=;--install-platlib=" \
-  ${MINGW_PREFIX}/bin/python setup.py install --root=${pkgdir} --prefix=${MINGW_PREFIX} --optimize=1 --skip-build
+  ${MINGW_PREFIX}/bin/python setup.py install --prefix=${MINGW_PREFIX} \
+    --root=${pkgdir} --optimize=1 --skip-build
 
-  install -D -m644 COPYING.md ${pkgdir}${MINGW_PREFIX}/share/licenses/python-${_realname}/LICENSE
+  install -Dm644 COPYING.md "${pkgdir}${MINGW_PREFIX}/share/licenses/python-${_realname}/LICENSE"
 
   local PREFIX_WIN=$(cygpath -wm ${MINGW_PREFIX})
   # fix python command in files