diff --git a/packages/x/xsimd/xmake.lua b/packages/x/xsimd/xmake.lua
index ebfbe8789..bde1374aa 100644
--- a/packages/x/xsimd/xmake.lua
+++ b/packages/x/xsimd/xmake.lua
@@ -7,6 +7,7 @@ package("xsimd")
     add_urls("https://github.com/xtensor-stack/xsimd/archive/refs/tags/$(version).tar.gz",
              "https://github.com/xtensor-stack/xsimd.git")
 
+    add_versions("12.1.1", "73f94a051278ef3da4533b691d31244d12074d5d71107473a9fd8d7be15f0110")
     add_versions("7.6.0", "eaf47f1a316ef6c3287b266161eeafc5aa61226ce5ac6c13502546435b790252")
     add_versions("8.0.3", "d1d41253c4f82eaf2f369d7fcb4142e35076cf8675b9d94caa06ecf883024344")
     add_versions("8.0.5", "0e1b5d973b63009f06a3885931a37452580dbc8d7ca8ad40d4b8c80d2a0f84d7")
@@ -28,14 +29,28 @@ package("xsimd")
     on_test(function (package)
         if package:version():ge("8.0") then
             assert(package:check_cxxsnippets({test = [[
-                #include <iostream>
+                #include <type_traits>
+                #include <vector>
+                
+                #include "xsimd/memory/xsimd_alignment.hpp"
+                
+                using namespace xsimd;
+                
+                struct mock_container {};
+                
                 void test() {
-                    xsimd::batch<double, xsimd::avx> a{1.5, 2.5, 3.5, 4.5};
-                    xsimd::batch<double, xsimd::avx> b{2.5, 3.5, 4.5, 5.5};
-                    auto mean = (a + b) / 2;
-                    std::cout << mean << std::endl;
+                    using u_vector_type = std::vector<double>;
+                    using a_vector_type = std::vector<double, xsimd::default_allocator<double>>;
+                
+                    using u_vector_align = container_alignment_t<u_vector_type>;
+                    using a_vector_align = container_alignment_t<a_vector_type>;
+                    using mock_align = container_alignment_t<mock_container>;
+                
+                    if (!std::is_same<u_vector_align, unaligned_mode>::value) abort();
+                    if (!std::is_same<a_vector_align, aligned_mode>::value) abort();
+                    if (!std::is_same<mock_align, unaligned_mode>::value) abort();
                 }
-            ]]}, {configs = {languages = "c++14"}, includes = "xsimd/xsimd.hpp"}))
+            ]]}, {configs = {languages = "c++14"}}))
         else
             assert(package:check_cxxsnippets({test = [[
                 #include <iostream>