diff --git a/mingw-w64-flang/PKGBUILD b/mingw-w64-flang/PKGBUILD
index 936db54819..e357c55f23 100644
--- a/mingw-w64-flang/PKGBUILD
+++ b/mingw-w64-flang/PKGBUILD
@@ -2,11 +2,11 @@ _compiler=clang
 _realname=flang
 pkgbase=mingw-w64-${_realname}
 pkgname=("${MINGW_PACKAGE_PREFIX}-${_realname}")
-_version=15.0.3
+_version=15.0.4
 _rc=""
 _tag=llvmorg-${_version}${_rc}
 pkgver=${_version}${_rc/-/}
-pkgrel=2
+pkgrel=1
 pkgdesc="Fortran frontend for LLVM (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw64' 'ucrt64' 'clang64')
@@ -34,9 +34,9 @@ source=("https://github.com/llvm/llvm-project/releases/download/${_tag}/flang-${
         "0001-cast-cxx11-narrowing.patch"
         "0002-cmake-22162.patch"
         "0003-do-not-link-to-llvm-dylib.patch")
-sha256sums=('79bece01f5b3f6ef5a442dc0caaedc7c975212b46867c7e239b9a18093fe1008'
+sha256sums=('2a42d2dd44fc632b260b0eae04bec2ab087a69d98f5f859075c3f5ead3870752'
             'SKIP'
-            '21cf3f52c53dc8b8972122ae35a5c18de09c7df693b48b5cd8553c3e3fed090d'
+            '9df45bf3a0a46264d5007485592381bbaf50f034b4155290cb0d917539d8facf'
             'SKIP'
             'ba08064d737a2aa173125e88c3900dce804220fb0562596b03130177c2139312'
             '77fb0612217b6af7a122f586a9d0d334cd48bb201509bf72e8f8e6244616e895'