diff --git a/mingw-w64-python-imagecodecs/PKGBUILD b/mingw-w64-python-imagecodecs/PKGBUILD
index 624f09da69..22c30a4e27 100644
--- a/mingw-w64-python-imagecodecs/PKGBUILD
+++ b/mingw-w64-python-imagecodecs/PKGBUILD
@@ -3,7 +3,7 @@
 _realname=imagecodecs
 pkgbase=mingw-w64-python-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-python-${_realname}")
-pkgver=2023.9.4
+pkgver=2023.9.18
 pkgrel=1
 pkgdesc="Image transformation, compression, and decompression codecs (mingw-w64)"
 arch=('any')
@@ -44,7 +44,7 @@ checkdepends=("${MINGW_PACKAGE_PREFIX}-python-pytest")
 options=('!strip')
 source=("https://pypi.org/packages/source/${_realname::1}/${_realname}/${_realname}-${pkgver}.tar.gz"
         "0001-deflate.patch")
-sha256sums=('1f09a2f9df6f6e29abbe2a20a1e7f5990edd1bd2c02dcb0611c841ffc5b8b178'
+sha256sums=('bf4b4be4759fc3b27b5022228aada83e735744e4b7c204bcdccaa961c3f79d4d'
             '51e7f4d58ef17d230bf9755832902982b4c228c153d30c65749d2312c3bbf281')
 
 prepare() {
diff --git a/mingw-w64-python-tifffile/PKGBUILD b/mingw-w64-python-tifffile/PKGBUILD
index d61742a885..a6aa521d3a 100644
--- a/mingw-w64-python-tifffile/PKGBUILD
+++ b/mingw-w64-python-tifffile/PKGBUILD
@@ -4,7 +4,7 @@
 _realname=tifffile
 pkgbase=mingw-w64-python-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-python-${_realname}")
-pkgver=2023.8.30
+pkgver=2023.9.18
 pkgrel=1
 pkgdesc="Read and write image data from and to TIFF files (mingw-w64)"
 arch=('any')
@@ -22,7 +22,7 @@ optdepends=("${MINGW_PACKAGE_PREFIX}-python-imagecodecs: required only for encod
             "${MINGW_PACKAGE_PREFIX}-python-matplotlib: required only for plotting"
             "${MINGW_PACKAGE_PREFIX}-python-lxml: required only for validating and printing XML")
 source=("https://pypi.org/packages/source/${_realname::1}/${_realname}/${_realname}-${pkgver}.tar.gz")
-sha256sums=('6a8c53b012a286b75d09a1498ab32f202f24cc6270a105b5d5911dc4426f162a')
+sha256sums=('391d49e5e10a0f50f627b9083116f965e37d40bfe4e4713154e5edd57591590c')
 
 build() {
   cp -r "${_realname}-${pkgver}" "python-build-${MSYSTEM}" && cd "python-build-${MSYSTEM}"