diff --git a/mingw-w64-postgresql/PKGBUILD b/mingw-w64-postgresql/PKGBUILD
index af48beb967..fd3e1849ba 100644
--- a/mingw-w64-postgresql/PKGBUILD
+++ b/mingw-w64-postgresql/PKGBUILD
@@ -3,8 +3,8 @@
 _realname=postgresql
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
-pkgver=14.2
-pkgrel=2
+pkgver=14.5
+pkgrel=1
 pkgdesc="Libraries for use with PostgreSQL (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32' 'clangarm64')
@@ -32,41 +32,52 @@ source=("https://ftp.postgresql.org/pub/source/v${pkgver}/postgresql-${pkgver}.t
         postgresql-13.1-disable-wsa-invalid-event-static-assert.patch
         postgresql-13.1-pgevent-def.patch
         postgresql-14.0-use-mingw-setjmp-on-ucrt.patch)
-
-sha256sums=('2cf78b2e468912f8101d695db5340cf313c2e9f68a612fb71427524e8c9a977a'
+sha256sums=('d4f72cb5fb857c9a9f75ec8cf091a1771272802f2178f0b2e65b7b6ff64f4a30'
             '607217b422349770d25af20f88e4a7925e68bb934232dff368c2ee59f24249a4'
-            '57c1e9b75c042af591b05b9dda60e6327b5c364bb5adc2675da8a48b47e11b81'
-            '1afbe207b0fe8c4178cc3f8cb4e3923c7c000207d22ec4f3875d6358b312a1d5'
-            'ab9c42374b4e8a01b598810b19b583d9ee7bf5c43c39c019f66b62aacac38926'
+            '99e6c8b9d58a9615c7bb1e7471b8e9c074add7bffc7d2cf742bafa38e9654e1f'
+            'ced0ccf978eefc1ad0641803c9759b652e588eb552ec9179cd9dfc9d94ecf499'
+            'b4e2a333ec98e3a60257b247b9922c2e7bb642686b05e2119610223a98aec376'
             '51c72fbd380d23cf944165405221912a277b9be99e285479772b39cacbbf384f'
             '72c14a78eeafdd3c9a13c3e124b1941b5da090488c7bd73f08b3cd78bacd07d5'
             'ffaecbe5a38877728bddbf307b379b39c645dd1ffe53aa8d84dfa96807494764'
             'e65f664644faa5cbd392c575a13bace31799e19d16be64cee362ba0e4a361c23')
 
+# Helper macros to help make tasks easier #
+apply_patch_with_msg() {
+  for _patch in "$@"
+  do
+    msg2 "Applying ${_patch}"
+    patch -Nbp1 -i "${srcdir}/${_patch}"
+  done
+}
+
 prepare() {
   cd ${srcdir}/postgresql-${pkgver}
-  patch -p1 -i ${srcdir}/postgresql-12.0-mingw-link.patch
-  patch -p1 -i ${srcdir}/postgresql-9.5.1-pl-perl.patch
-  patch -p1 -i ${srcdir}/postgresql-9.5.1-pl-python.patch
-  patch -p1 -i ${srcdir}/postgresql-9.4.1-pl-tcl.patch
+  apply_patch_with_msg \
+    postgresql-12.0-mingw-link.patch \
+    postgresql-9.5.1-pl-perl.patch \
+    postgresql-9.5.1-pl-python.patch \
+    postgresql-9.4.1-pl-tcl.patch \
+    postgresql-13.1-disable-wsa-invalid-event-static-assert.patch \
+    postgresql-13.1-pgevent-def.patch \
+    postgresql-14.0-use-mingw-setjmp-on-ucrt.patch
   #patch -p1 -i ${srcdir}/postgresql-9.4.1-mingw-enable-readline.patch
-  patch -p1 -i ${srcdir}/postgresql-13.1-disable-wsa-invalid-event-static-assert.patch
-  patch -p1 -i ${srcdir}/postgresql-13.1-pgevent-def.patch
-  patch -p1 -i ${srcdir}/postgresql-14.0-use-mingw-setjmp-on-ucrt.patch
 
   sed -s "s|2\\.69|2\\.71|g" -i configure.ac
   autoreconf -fiv
 }
 
 build() {
-  [[ -d "${srcdir}/build-${CARCH}" ]] && rm -rf "${srcdir}/build-${CARCH}"
+  [[ -d "${srcdir}/build-${MSYSTEM}" ]] && rm -rf "${srcdir}/build-${MSYSTEM}"
+  mkdir -p "${srcdir}/build-${MSYSTEM}" && cd "${srcdir}/build-${MSYSTEM}"
+
   if [[ ${MINGW_PACKAGE_PREFIX} == *-clang-i686* ]]; then
     # clang on i686 without sse2 is not supported by postgresql
     # https://www.postgresql.org/message-id/20180904221627.r4c3gp4pimzz4hyp%40alap3.anarazel.de
     CFLAGS+=" -msse2"
   fi
-  mkdir -p "${srcdir}/build-${CARCH}" && cd "${srcdir}/build-${CARCH}"
   export PYTHON=${MINGW_PREFIX}/bin/python
+
   ../postgresql-${pkgver}/configure \
     --build=${MINGW_CHOST} \
     --host=${MINGW_CHOST} \
@@ -93,12 +104,12 @@ build() {
 }
 
 check() {
-  cd "${srcdir}/build-${CARCH}"
+  cd "${srcdir}/build-${MSYSTEM}"
   make check
 }
 
 package() {
-  cd "${srcdir}/build-${CARCH}"
+  cd "${srcdir}/build-${MSYSTEM}"
   mkdir -p "${pkgdir}${MINGW_PREFIX}/"{bin,include,lib}
 
   make DESTDIR="${pkgdir}" install
diff --git a/mingw-w64-postgresql/postgresql-9.4.1-pl-tcl.patch b/mingw-w64-postgresql/postgresql-9.4.1-pl-tcl.patch
index b543d62f13..9980468179 100644
--- a/mingw-w64-postgresql/postgresql-9.4.1-pl-tcl.patch
+++ b/mingw-w64-postgresql/postgresql-9.4.1-pl-tcl.patch
@@ -30,7 +30,7 @@
 -	dlltool --dllname $(tclwithver).dll --def $(tclwithver).def --output-lib lib$(tclwithver).a
 -
 -$(tclwithver).def: $(TCLDLL)
--	pexports $^ > $@
+-	gendef - $^ > $@
 -
 -endif # win32
 -
diff --git a/mingw-w64-postgresql/postgresql-9.5.1-pl-perl.patch b/mingw-w64-postgresql/postgresql-9.5.1-pl-perl.patch
index f78ef55777..1493c671f6 100644
--- a/mingw-w64-postgresql/postgresql-9.5.1-pl-perl.patch
+++ b/mingw-w64-postgresql/postgresql-9.5.1-pl-perl.patch
@@ -20,7 +20,7 @@
 -	dlltool --dllname $(perlwithver).dll --def $(perlwithver).def --output-lib lib$(perlwithver).a
 -
 -$(perlwithver).def: $(PERLDLL)
--	pexports $^ > $@
+-	gendef - $^ > $@
 -
 -endif # win32
 -
diff --git a/mingw-w64-postgresql/postgresql-9.5.1-pl-python.patch b/mingw-w64-postgresql/postgresql-9.5.1-pl-python.patch
index 0dbe0e268b..1b3a9d8d51 100644
--- a/mingw-w64-postgresql/postgresql-9.5.1-pl-python.patch
+++ b/mingw-w64-postgresql/postgresql-9.5.1-pl-python.patch
@@ -30,7 +30,7 @@
 -	dlltool --dllname python${pytverstr}.dll --def python${pytverstr}.def --output-lib libpython${pytverstr}.a
 -
 -python${pytverstr}.def:
--	pexports $(PYTHONDLL) > $@
+-	gendef - $(PYTHONDLL) > $@
 -
 -endif # win32
 -