diff --git a/mingw-w64-jasper/PKGBUILD b/mingw-w64-jasper/PKGBUILD
index 62cb3b51a5..81e5b1d1b5 100644
--- a/mingw-w64-jasper/PKGBUILD
+++ b/mingw-w64-jasper/PKGBUILD
@@ -4,7 +4,7 @@ _realname=jasper
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}"
          "${MINGW_PACKAGE_PREFIX}-${_realname}-docs")
-pkgver=4.2.0
+pkgver=4.2.1
 pkgrel=1
 pkgdesc="Reference implementation of JPEG-2000 Part-1 codec (ISO/IEC 15444-5) (mingw-w64)"
 arch=('any')
@@ -24,7 +24,7 @@ source=(${_realname}-${pkgver}.tar.gz::https://github.com/jasper-software/jasper
         001-mingw-cmake.patch
         004-jasper-exports.patch
         005-fix-filename-buffer-overflow-msvcrt.patch)
-sha256sums=('c9a3e35c95447f530b006fab6634a2dadec70276cc3e42c343b9e5ce5a1f2b6b'
+sha256sums=('970002b774b91edd9d2dedf76d0b8d5a88af28e0c6d603cc51988311a99a869f'
             '89f7653884c93e1cb32271c59213551d1231674bd12df00331c302971d5ac489'
             '0f9b9270edb3f19c08425d8e97588b4ebe6b494579e2b66bb14929d01c8b4059'
             '96db137a8eb657d1ee84339f3a8783637dbae8ebed5d32276ec8f76786fc1ab2')