diff --git a/mingw-w64-python-jupyter_client/PKGBUILD b/mingw-w64-python-jupyter_client/PKGBUILD
index 045ed45560..e5583c963c 100644
--- a/mingw-w64-python-jupyter_client/PKGBUILD
+++ b/mingw-w64-python-jupyter_client/PKGBUILD
@@ -7,7 +7,7 @@ provides=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 conflicts=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 replaces=("${MINGW_PACKAGE_PREFIX}-python3-${_realname}")
 pkgver=6.1.11
-pkgrel=1
+pkgrel=2
 pkgdesc="The reference implementation of the Jupyter protocol (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64')
@@ -21,7 +21,6 @@ depends=("${MINGW_PACKAGE_PREFIX}-python"
          "${MINGW_PACKAGE_PREFIX}-python-tornado"
          "${MINGW_PACKAGE_PREFIX}-python-traitlets")
 makedepends=("${MINGW_PACKAGE_PREFIX}-python-setuptools")
-install=${_realname}3-${CARCH}.install
 source=("${_realname}-${pkgver}.tar.gz::https://github.com/jupyter/jupyter_client/archive/${pkgver}.tar.gz")
 sha256sums=('7a318b26b5e7aaece370f58c4a107d3ba35b01063f0668ec2e44939847a03177')
 
@@ -49,10 +48,8 @@ package() {
   find "${pkgdir}/" -name "*.pyc" -delete
   find "${pkgdir}/" -type d -empty -delete
 
-  local PREFIX_WIN=$(cygpath -wm ${MINGW_PREFIX})
-  # fix python command in files
-  for _f in "${pkgdir}${MINGW_PREFIX}"/bin/*; do
-    sed -e "s|${PREFIX_WIN}|${MINGW_PREFIX}|g" -i ${_f}
+  for _f in "${pkgdir}${MINGW_PREFIX}"/bin/*-script.py; do
+    sed -e '1 { s/^#!.*$// }' -i ${_f}
   done
 
   install -Dm644 "COPYING.md" "${pkgdir}${MINGW_PREFIX}/share/licenses/python-${_realname}/LICENSE"
diff --git a/mingw-w64-python-jupyter_client/jupyter_client3-i686.install b/mingw-w64-python-jupyter_client/jupyter_client3-i686.install
deleted file mode 100644
index 805075f0ec..0000000000
--- a/mingw-w64-python-jupyter_client/jupyter_client3-i686.install
+++ /dev/null
@@ -1,17 +0,0 @@
-post_install() {
-  cd mingw32
-  local _prefix=$(pwd -W)
-  cd -
-  local _it
-# "somepackage" should be replaced with the name of your .EXE w/o 2 and .exe ext
-# Like this:
-# For "myexe.exe", it would be "myexe" .
-  for _it in jupyter-run jupyter-kernel jupyter-kernelspec; do
-    sed -e "s|/mingw32|${_prefix}|g" \
-        -i ${_prefix}/bin/${_it}-script.py
-  done
-}
-
-post_upgrade() {
-  post_install
-}
diff --git a/mingw-w64-python-jupyter_client/jupyter_client3-x86_64.install b/mingw-w64-python-jupyter_client/jupyter_client3-x86_64.install
deleted file mode 100644
index 2c4d02b671..0000000000
--- a/mingw-w64-python-jupyter_client/jupyter_client3-x86_64.install
+++ /dev/null
@@ -1,14 +0,0 @@
-post_install() {
-  cd mingw64
-  local _prefix=$(pwd -W)
-  cd -
-  local _it
-  for _it in jupyter-run jupyter-kernel jupyter-kernelspec; do
-    sed -e "s|/mingw64|${_prefix}|g" \
-        -i ${_prefix}/bin/${_it}-script.py
-  done
-}
-
-post_upgrade() {
-  post_install
-}