diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index fcc9c3239..a08e144ca 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -97,8 +97,8 @@ jobs:
           install: git binutils mingw-w64-x86_64-clang mingw-w64-x86_64-ninja mingw-w64-x86_64-cmake mingw-w64-x86_64-toolchain mingw-w64-x86_64-python
       - shell: msys2 {0}
         run: |
-            pacman --noconfirm -U https://mirror.msys2.org/mingw/mingw64/mingw-w64-x86_64-llvm-17.0.1-1-any.pkg.tar.zst
-            pacman --noconfirm -U https://mirror.msys2.org/mingw/mingw64/mingw-w64-x86_64-lld-17.0.1-1-any.pkg.tar.zst
+            pacman --noconfirm -U https://mirror.msys2.org/mingw/mingw64/mingw-w64-x86_64-llvm-17.0.2-1-any.pkg.tar.zst
+            pacman --noconfirm -U https://mirror.msys2.org/mingw/mingw64/mingw-w64-x86_64-lld-17.0.2-1-any.pkg.tar.zst
       - name: CMake
         run: |
           cmake -B build -G Ninja -DCMAKE_C_COMPILER=clang -DCMAKE_BUILD_TYPE=${{ matrix.build_type }}
diff --git a/src/compiler/llvm_codegen_expr.c b/src/compiler/llvm_codegen_expr.c
index 59c42dc06..9aa717146 100644
--- a/src/compiler/llvm_codegen_expr.c
+++ b/src/compiler/llvm_codegen_expr.c
@@ -2621,7 +2621,7 @@ static void llvm_emit_unary_expr(GenContext *c, BEValue *value, Expr *expr)
 				LLVMValueRef val = llvm_load(c, big_int, value->value, value->alignment, "");
 				val = LLVMBuildNot(c->builder, val, "bnot");
 				LLVMValueRef store = llvm_emit_alloca(c, big_int, value->alignment, "");
-				LLVMBuildStore(c->builder, val, store);
+				llvm_store_to_ptr_raw_aligned(c, store, val, value->alignment);
 				llvm_value_set_address(value, store, value->type, value->alignment);
 				return;
 			}
diff --git a/test/test_suite/bitstruct/bitstruct_ops.c3t b/test/test_suite/bitstruct/bitstruct_ops.c3t
index a9219e9bc..b94f3ab5c 100644
--- a/test/test_suite/bitstruct/bitstruct_ops.c3t
+++ b/test/test_suite/bitstruct/bitstruct_ops.c3t
@@ -216,7 +216,7 @@ entry:
   %77 = call i64 @std.io.printfn(ptr %retparam32, ptr @.str.4, i64 8, ptr %varargslots26, i64 3)
   %78 = load i104, ptr %b3, align 1
   %bnot33 = xor i104 %78, -1
-  store i104 %bnot33, ptr %1, align 8
+  store i104 %bnot33, ptr %1, align 1
   call void @llvm.memcpy.p0.p0.i32(ptr align 1 %b3, ptr align 1 %1, i32 13, i1 false)
   %79 = getelementptr inbounds [13 x i8], ptr %b3, i64 0, i64 0
   %80 = load i8, ptr %79, align 1
diff --git a/test/test_suite/debug_symbols/constants_mingw.c3t b/test/test_suite/debug_symbols/constants_mingw.c3t
index 921711465..ef27a55fe 100644
--- a/test/test_suite/debug_symbols/constants_mingw.c3t
+++ b/test/test_suite/debug_symbols/constants_mingw.c3t
@@ -10,7 +10,7 @@ const FOO @private = ~(uint)(0);
 ; ModuleID = 'constants_mingw'
 
 source_filename = "constants_mingw"
-target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
+target datalayout = "e-m:w-p270:32:32-p271:32:32-p272:64:64-i64:
 target triple = "x86_64-w64-windows-gnu"
 
 @constants_mingw.AA = protected unnamed_addr constant i8 1, align 1