diff --git a/.github/workflows/dynamic_arch.yml b/.github/workflows/dynamic_arch.yml
index 85b20c060..4fe6e63fc 100644
--- a/.github/workflows/dynamic_arch.yml
+++ b/.github/workflows/dynamic_arch.yml
@@ -167,6 +167,9 @@ jobs:
             idx: int32
             target-prefix: mingw-w64-clang-x86_64
             fc-pkg: fc
+            # Compiling with Flang 16 seems to cause test errors on machines
+            # with AVX512 instructions. Revisit after MSYS2 distributes Flang 17.
+            no-avx512-flags: -DNO_AVX512=1
           - msystem: CLANG32
             idx: int32
             target-prefix: mingw-w64-clang-i686
@@ -182,6 +185,9 @@ jobs:
             idx64-flags: -DBINARY=64 -DINTERFACE64=1
             target-prefix: mingw-w64-clang-x86_64
             fc-pkg: fc
+            # Compiling with Flang 16 seems to cause test errors on machines
+            # with AVX512 instructions. Revisit after MSYS2 distributes Flang 17.
+            no-avx512-flags: -DNO_AVX512=1
           - msystem: MINGW64
             idx: int32
             target-prefix: mingw-w64-x86_64
@@ -268,6 +274,7 @@ jobs:
                 -DTARGET=CORE2 \
                 ${{ matrix.idx64-flags }} \
                 ${{ matrix.c-lapack-flags }} \
+                ${{ matrix.no-avx512-flags }} \
                 -DCMAKE_C_COMPILER_LAUNCHER=ccache \
                 -DCMAKE_Fortran_COMPILER_LAUNCHER=ccache \
                 ..