diff --git a/mingw-w64-python-ipykernel/PKGBUILD b/mingw-w64-python-ipykernel/PKGBUILD
index dde0ce6260..ac683f1486 100644
--- a/mingw-w64-python-ipykernel/PKGBUILD
+++ b/mingw-w64-python-ipykernel/PKGBUILD
@@ -6,7 +6,7 @@ pkgname=("${MINGW_PACKAGE_PREFIX}-python-${_realname}")
 provides=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 conflicts=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 replaces=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
-pkgver=6.21.2
+pkgver=6.21.3
 pkgrel=1
 pkgdesc="The ipython kernel for Jupyter (mingw-w64)"
 arch=('any')
@@ -18,20 +18,19 @@ depends=("${MINGW_PACKAGE_PREFIX}-python-debugpy"
          "${MINGW_PACKAGE_PREFIX}-python-comm"
          "${MINGW_PACKAGE_PREFIX}-python-traitlets"
          "${MINGW_PACKAGE_PREFIX}-python-jupyter_client"
+         "${MINGW_PACKAGE_PREFIX}-python-jupyter_core"
+         "${MINGW_PACKAGE_PREFIX}-python-nest-asyncio"
          "${MINGW_PACKAGE_PREFIX}-python-tornado"
          "${MINGW_PACKAGE_PREFIX}-python-matplotlib-inline"
          "${MINGW_PACKAGE_PREFIX}-python-pyzmq"
          "${MINGW_PACKAGE_PREFIX}-python-psutil"
-         "${MINGW_PACKAGE_PREFIX}-python-nest-asyncio"
          "${MINGW_PACKAGE_PREFIX}-python-packaging")
 makedepends=("${MINGW_PACKAGE_PREFIX}-python-build"
              "${MINGW_PACKAGE_PREFIX}-python-installer"
              "${MINGW_PACKAGE_PREFIX}-python-hatchling")
-checkdepends=("${MINGW_PACKAGE_PREFIX}-python-pytest"
-              "${MINGW_PACKAGE_PREFIX}-python-mock"
-              "${MINGW_PACKAGE_PREFIX}-python-nose")
-source=("${_realname}-${pkgver}.tar.gz::https://github.com/ipython/${_realname}/archive/v${pkgver}.tar.gz")
-sha256sums=('b078f93f8b9abf61deda232f5e16953c0d386af4b6b165d5c583167ac703f0f7')
+checkdepends=("${MINGW_PACKAGE_PREFIX}-python-pytest")
+source=("https://pypi.org/packages/source/${_realname::1}/${_realname}/${_realname}-${pkgver}.tar.gz")
+sha256sums=('c8ff581905d70e7299bc1473a2f7c113bec1744fb3746d58e5b4b93bd8ee7001')
 
 build() {
   cp -r "${_realname}-${pkgver}" "python-build-${MSYSTEM}" && cd "python-build-${MSYSTEM}"
@@ -52,6 +51,6 @@ package() {
     ${MINGW_PREFIX}/bin/python -m installer --prefix=${MINGW_PREFIX} \
     --destdir="${pkgdir}" dist/*.whl
 
-  install -Dm644 COPYING.md "${pkgdir}${MINGW_PREFIX}/share/licenses/python-${_realname}/LICENSE"
+  install -Dm644 LICENSE "${pkgdir}${MINGW_PREFIX}/share/licenses/python-${_realname}/LICENSE"
 }