diff --git a/.github/workflows/test-shared.yml b/.github/workflows/test-shared.yml
index f7483103016f..8fdd2f0bce41 100644
--- a/.github/workflows/test-shared.yml
+++ b/.github/workflows/test-shared.yml
@@ -36,6 +36,7 @@ on:
       - deps/uvwasi/**
       - deps/v8/third_party/abseil-cpp/**
       - deps/v8/third_party/highway/**
+      - deps/v8/third_party/simdutf/**
       - deps/zlib/**
       - deps/zstd/**
       - doc/**
@@ -92,6 +93,7 @@ on:
       - deps/uvwasi/**
       - deps/v8/third_party/abseil-cpp/**
       - deps/v8/third_party/highway/**
+      - deps/v8/third_party/simdutf/**
       - deps/zlib/**
       - deps/zstd/**
       - doc/**
diff --git a/Makefile b/Makefile
index 8dec67750f0c..c9f3ad5f05e2 100644
--- a/Makefile
+++ b/Makefile
@@ -1326,6 +1326,7 @@ ifeq ($(SKIP_SHARED_DEPS), 1)
 	$(RM) -r $(TARNAME)/deps/uvwasi
 	$(RM) -r $(TARNAME)/deps/v8/third_party/abseil-cpp
 	$(RM) -r $(TARNAME)/deps/v8/third_party/highway
+	$(RM) -r $(TARNAME)/deps/v8/third_party/simdutf
 	$(RM) -r $(TARNAME)/deps/zlib
 	$(RM) -r $(TARNAME)/deps/zstd
 else
diff --git a/common.gypi b/common.gypi
index ce602beccf66..508d51a21cc6 100644
--- a/common.gypi
+++ b/common.gypi
@@ -43,7 +43,7 @@
 
     # Reset this number to 0 on major V8 upgrades.
     # Increment by one for each non-official patch applied to deps/v8.
-    'v8_embedder_string': '-node.32',
+    'v8_embedder_string': '-node.33',
 
     ##### V8 defaults for Node.js #####
 
diff --git a/deps/ada/ada.gyp b/deps/ada/ada.gyp
index 30054e63e567..855261f9ecaf 100644
--- a/deps/ada/ada.gyp
+++ b/deps/ada/ada.gyp
@@ -8,7 +8,6 @@
       'type': 'static_library',
       'include_dirs': [
         '.',
-        '<(DEPTH)/deps/v8/third_party/simdutf',
       ],
       'direct_dependent_settings': {
         'include_dirs': ['.'],
@@ -17,7 +16,7 @@
         'ADA_USE_SIMDUTF=1',
       ],
       'dependencies': [
-        '../../tools/v8_gypfiles/v8.gyp:simdutf',
+        '../../tools/v8_gypfiles/simdutf.gyp:simdutf',
       ],
       'sources': [ '<@(ada_sources)' ]
     },
diff --git a/deps/v8/BUILD.bazel b/deps/v8/BUILD.bazel
index 53c06e3ceccf..0c6f27d82dd9 100644
--- a/deps/v8/BUILD.bazel
+++ b/deps/v8/BUILD.bazel
@@ -4584,6 +4584,7 @@ cc_library(
   name = "simdutf",
   srcs = ["third_party/simdutf/simdutf.cpp"],
   hdrs = ["third_party/simdutf/simdutf.h"],
+  strip_include_prefix = "third_party/simdutf",
   copts = select({
         "@v8//bazel/config:is_clang": ["-std=c++20"],
         "@v8//bazel/config:is_gcc": ["-std=gnu++2a"],
diff --git a/deps/v8/BUILD.gn b/deps/v8/BUILD.gn
index ea335df90341..e0f2007bf530 100644
--- a/deps/v8/BUILD.gn
+++ b/deps/v8/BUILD.gn
@@ -2516,6 +2516,16 @@ group("v8_abseil") {
   ]
 }
 
+group("v8_simdutf") {
+  public_deps = [ "//third_party/simdutf" ]
+  public_configs = [ ":simdutf_include_config" ]
+
+  visibility = [ "./*" ]
+}
+config("simdutf_include_config") {
+  include_dirs = [ "//third_party/simdutf" ]
+}
+
 group("zoslib") {
   if (current_os == "zos") {
     deps = [ "//third_party/zoslib" ]
@@ -5308,6 +5318,7 @@ v8_header_set("v8_internal_headers") {
     ":v8_headers",
     ":v8_maybe_icu",
     ":v8_shared_internal_headers",
+    ":v8_simdutf",
     "//third_party/fp16",
   ]
 
@@ -5323,7 +5334,6 @@ v8_header_set("v8_internal_headers") {
     ":v8_heap_base_headers",
     ":v8_libbase",
     ":v8_maybe_temporal",
-    "//third_party/simdutf",
   ]
   if (v8_enable_experimental_tq_to_tsa) {
     deps += [ ":run_torque_to_tsa" ]
@@ -6727,7 +6737,7 @@ v8_source_set("v8_base_without_compiler") {
     ":v8_headers",
     ":v8_internal_headers",
     ":v8_maybe_icu",
-    "//third_party/simdutf",
+    ":v8_simdutf",
   ]
   if (v8_enable_experimental_tq_to_tsa) {
     public_deps += [ ":run_torque_to_tsa" ]
@@ -8287,9 +8297,9 @@ v8_executable("d8") {
     ":v8",
     ":v8_libbase",
     ":v8_libplatform",
+    ":v8_simdutf",
     ":v8_tracing",
     "//build/win:default_exe_manifest",
-    "//third_party/simdutf",
   ]
 
   if (is_posix || is_fuchsia) {
diff --git a/deps/v8/DEPS b/deps/v8/DEPS
index 5dd3a777e4f3..8787d03124f2 100644
--- a/deps/v8/DEPS
+++ b/deps/v8/DEPS
@@ -557,10 +557,10 @@ include_rules = [
   '+third_party/fp16/src/include',
   '+third_party/fuzztest',
   '+third_party/ittapi/include',
-  '+third_party/simdutf',
   '+third_party/v8/codegen',
   '+third_party/vtune',
   '+hwy/highway.h',
+  '+simdutf.h',
   # Abseil features are allow-listed. Please use your best judgement when adding
   # to this set -- if in doubt, email v8-dev@. For general guidance, refer to
   # the Chromium guidelines (though note that some requirements in V8 may be
diff --git a/deps/v8/src/builtins/builtins-typed-array.cc b/deps/v8/src/builtins/builtins-typed-array.cc
index 06849f391467..3ab036e76312 100644
--- a/deps/v8/src/builtins/builtins-typed-array.cc
+++ b/deps/v8/src/builtins/builtins-typed-array.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "simdutf.h"
 #include "src/base/logging.h"
 #include "src/base/macros.h"
 #include "src/builtins/builtins-utils-inl.h"
@@ -15,7 +16,6 @@
 #include "src/objects/objects-inl.h"
 #include "src/objects/option-utils.h"
 #include "src/objects/simd.h"
-#include "third_party/simdutf/simdutf.h"
 
 namespace v8::internal {
 
diff --git a/deps/v8/src/objects/string-inl.h b/deps/v8/src/objects/string-inl.h
index 1d414c3465e0..604b64dada3f 100644
--- a/deps/v8/src/objects/string-inl.h
+++ b/deps/v8/src/objects/string-inl.h
@@ -12,6 +12,7 @@
 #include <type_traits>
 
 #include "absl/functional/overload.h"
+#include "simdutf.h"
 #include "src/common/assert-scope.h"
 #include "src/common/globals.h"
 #include "src/execution/isolate-utils.h"
@@ -38,7 +39,6 @@
 #include "src/torque/runtime-macro-shims.h"
 #include "src/torque/runtime-support.h"
 #include "src/utils/utils.h"
-#include "third_party/simdutf/simdutf.h"
 
 // Has to be the last include (doesn't have include guards):
 #include "src/objects/object-macros.h"
diff --git a/deps/v8/src/objects/string.h b/deps/v8/src/objects/string.h
index c6003839758f..c8ef0434577d 100644
--- a/deps/v8/src/objects/string.h
+++ b/deps/v8/src/objects/string.h
@@ -8,6 +8,7 @@
 #include <memory>
 #include <optional>
 
+#include "simdutf.h"
 #include "src/base/bits.h"
 #include "src/base/export-template.h"
 #include "src/base/small-vector.h"
@@ -21,7 +22,6 @@
 #include "src/objects/tagged.h"
 #include "src/sandbox/external-pointer.h"
 #include "src/strings/unicode-decoder.h"
-#include "third_party/simdutf/simdutf.h"
 
 // Has to be the last include (doesn't have include guards):
 #include "src/objects/object-macros.h"
diff --git a/deps/v8/src/strings/unicode-inl.h b/deps/v8/src/strings/unicode-inl.h
index 25f3d0375e7f..3f1b5b33f343 100644
--- a/deps/v8/src/strings/unicode-inl.h
+++ b/deps/v8/src/strings/unicode-inl.h
@@ -8,9 +8,9 @@
 #include "src/strings/unicode.h"
 // Include the non-inl header before the rest of the headers.
 
+#include "simdutf.h"
 #include "src/base/logging.h"
 #include "src/utils/utils.h"
-#include "third_party/simdutf/simdutf.h"
 
 namespace unibrow {
 
diff --git a/deps/v8/src/strings/unicode.cc b/deps/v8/src/strings/unicode.cc
index d213ea68e8ad..74687f7463e3 100644
--- a/deps/v8/src/strings/unicode.cc
+++ b/deps/v8/src/strings/unicode.cc
@@ -22,7 +22,7 @@
 #endif
 
 #include "hwy/highway.h"
-#include "third_party/simdutf/simdutf.h"
+#include "simdutf.h"
 
 namespace unibrow {
 
diff --git a/deps/v8/test/cctest/BUILD.gn b/deps/v8/test/cctest/BUILD.gn
index 52faa5ccbcaf..10c6e1e91d50 100644
--- a/deps/v8/test/cctest/BUILD.gn
+++ b/deps/v8/test/cctest/BUILD.gn
@@ -14,8 +14,8 @@ v8_executable("cctest") {
     "../..:v8_for_testing",
     "../..:v8_libbase",
     "../..:v8_libplatform",
+    "../..:v8_simdutf",
     "../../tools/debug_helper:v8_debug_helper",
-    "//third_party/simdutf",
   ]
 
   data_deps = [ "../../tools:v8_testrunner" ]
diff --git a/node.gyp b/node.gyp
index 52f421f3181c..98e37c1087a1 100644
--- a/node.gyp
+++ b/node.gyp
@@ -1652,7 +1652,7 @@
           'libraries': [ '-framework CoreFoundation -framework Security' ],
         }],
         [ 'node_shared_simdutf=="false" and node_use_bundled_v8!="false"', {
-          'dependencies': [ 'tools/v8_gypfiles/v8.gyp:simdutf#host' ],
+          'dependencies': [ 'tools/v8_gypfiles/simdutf.gyp:simdutf#host' ],
         }],
         [ 'node_shared_libuv=="false"', {
           'dependencies': [ 'deps/uv/uv.gyp:libuv#host' ],
diff --git a/node.gypi b/node.gypi
index bfe2d00ad929..b382784e6100 100644
--- a/node.gypi
+++ b/node.gypi
@@ -247,7 +247,7 @@
     }],
 
     [ 'node_shared_simdutf=="false" and node_use_bundled_v8!="false"', {
-        'dependencies': [ 'tools/v8_gypfiles/v8.gyp:simdutf' ],
+        'dependencies': [ 'tools/v8_gypfiles/simdutf.gyp:simdutf' ],
     }],
 
     [ 'node_shared_brotli=="false"', {
diff --git a/shell.nix b/shell.nix
index 1829c1efd21b..6415a372ffab 100644
--- a/shell.nix
+++ b/shell.nix
@@ -48,14 +48,24 @@
   benchmarkTools ? import ./tools/nix/benchmarkTools.nix { inherit pkgs; },
 }:
 
+assert pkgs.lib.assertMsg (
+  withTemporal || !(builtins.hasAttr "temporal_capi" sharedLibDeps)
+) "`sharedLibDeps` must not contain `temporal_capi` when `withTemporal` is false";
+assert pkgs.lib.assertMsg (
+  withPerfetto || !(builtins.hasAttr "perfetto" sharedLibDeps)
+) "`sharedLibDeps` must not contain `perfetto` when `withPerfetto` is false";
+
 let
   useSharedICU = if builtins.isString icu then icu == "system" else icu != null;
-  useSharedAda = builtins.hasAttr "ada" sharedLibDeps;
-  useSharedOpenSSL = builtins.hasAttr "openssl" sharedLibDeps;
+  needsRustCompiler = withTemporal && !(builtins.hasAttr "temporal_capi" sharedLibDeps);
 
-  useSharedPerfetto = builtins.hasAttr "perfetto" sharedLibDeps;
-  useSharedTemporal = builtins.hasAttr "temporal_capi" sharedLibDeps;
-  needsRustCompiler = withTemporal && !useSharedTemporal;
+  sharedV8Deps = builtins.filter (depName: builtins.hasAttr depName sharedLibDeps) ([
+    "abseil"
+    "highway"
+    "perfetto"
+    "simdutf"
+    "temporal_capi"
+  ]);
 
   nativeBuildInputs =
     pkgs.nodejs-slim_latest.nativeBuildInputs
@@ -64,11 +74,7 @@ let
       pkgs.rustc
     ];
   buildInputs =
-    pkgs.lib.optional useSharedICU icu
-    ++ pkgs.lib.optional (builtins.hasAttr "abseil" sharedLibDeps) sharedLibDeps.abseil
-    ++ pkgs.lib.optional (builtins.hasAttr "highway" sharedLibDeps) sharedLibDeps.highway
-    ++ pkgs.lib.optional (withPerfetto && useSharedPerfetto) sharedLibDeps.perfetto
-    ++ pkgs.lib.optional (withTemporal && useSharedTemporal) sharedLibDeps.temporal_capi;
+    pkgs.lib.optional useSharedICU icu ++ builtins.map (depName: sharedLibDeps.${depName}) sharedV8Deps;
 
   # Put here only the configure flags that affect the V8 build
   configureFlags = [
@@ -80,10 +86,7 @@ let
     )
     "--v8-${if withTemporal then "enable" else "disable"}-temporal-support"
   ]
-  ++ pkgs.lib.optional (builtins.hasAttr "abseil" sharedLibDeps) "--shared-abseil"
-  ++ pkgs.lib.optional (builtins.hasAttr "highway" sharedLibDeps) "--shared-highway"
-  ++ pkgs.lib.optional (withPerfetto && useSharedPerfetto) "--shared-perfetto"
-  ++ pkgs.lib.optional (withTemporal && useSharedTemporal) "--shared-temporal_capi"
+  ++ builtins.map (depName: "--shared-${depName}") sharedV8Deps
   ++ pkgs.lib.optional withPerfetto "--with-perfetto";
 in
 pkgs.mkShell {
@@ -129,26 +132,14 @@ pkgs.mkShell {
       ++ pkgs.lib.optional (!withSSL) "--without-ssl"
       ++ pkgs.lib.optional loadJSBuiltinsDynamically "--node-builtin-modules-path=${builtins.toString ./.}"
       ++ pkgs.lib.optional (useSeparateDerivationForV8 != false) "--without-bundled-v8"
-      ++
-        pkgs.lib.concatMap
-          (name: [
-            "--shared-${name}"
-            "--shared-${name}-libpath=${pkgs.lib.getLib sharedLibDeps.${name}}/lib"
-            "--shared-${name}-include=${pkgs.lib.getInclude sharedLibDeps.${name}}/include"
-          ])
-          (
-            builtins.attrNames (
-              if (useSeparateDerivationForV8 != false) then
-                builtins.removeAttrs sharedLibDeps [
-                  "abseil"
-                  "highway"
-                  "simdutf"
-                  "temporal_capi"
-                ]
-              else
-                sharedLibDeps
-            )
-          )
+      ++ builtins.map (name: "--shared-${name}") (
+        builtins.attrNames (
+          if (useSeparateDerivationForV8 != false) then
+            builtins.removeAttrs sharedLibDeps sharedV8Deps
+          else
+            sharedLibDeps
+        )
+      )
     );
   }
   // (
diff --git a/tools/nix/sharedLibDeps.nix b/tools/nix/sharedLibDeps.nix
index d57ceb4918bb..0dab23c9c85c 100644
--- a/tools/nix/sharedLibDeps.nix
+++ b/tools/nix/sharedLibDeps.nix
@@ -18,7 +18,6 @@
     nbytes
     nghttp2
     simdjson
-    simdutf
     uvwasi
     zlib
     zstd
@@ -28,6 +27,10 @@
   hdr-histogram = pkgs.hdrhistogram_c;
   highway = pkgs.libhwy;
   http-parser = pkgs.llhttp;
+  simdutf = pkgs.simdutf.overrideAttrs (old: {
+    # TODO: remove this once the pin we use has picked up https://github.com/NixOS/nixpkgs/pull/557405
+    cmakeFlags = old.cmakeFlags ++ [ (pkgs.lib.cmakeFeature "SIMDUTF_CXX_STANDARD" "20") ];
+  });
 }
 // (pkgs.lib.optionalAttrs withLief {
   inherit (pkgs) lief;
diff --git a/tools/nix/v8.nix b/tools/nix/v8.nix
index 3c3c3ab47347..81617fff8096 100644
--- a/tools/nix/v8.nix
+++ b/tools/nix/v8.nix
@@ -25,6 +25,7 @@
 let
   useSharedAbseil = builtins.elem "--shared-abseil" configureFlags;
   useSharedHighway = builtins.elem "--shared-highway" configureFlags;
+  useSharedSimdutf = builtins.elem "--shared-simdutf" configureFlags;
   src =
     let
       inherit (lib) fileset;
@@ -47,6 +48,7 @@ let
       ]
       ++ lib.optional (!useSharedAbseil) ../../tools/v8_gypfiles/abseil.gyp
       ++ lib.optional (!useSharedHighway) ../../tools/v8_gypfiles/highway.gyp
+      ++ lib.optional (!useSharedSimdutf) ../../tools/v8_gypfiles/simdutf.gyp
       ++ lib.optional (
         builtins.elem "--with-perfetto" configureFlags
         && !(builtins.elem "--shared-perfetto" configureFlags)
@@ -76,6 +78,7 @@ let
           ]
           ++ lib.optional useSharedAbseil ../../deps/v8/third_party/abseil-cpp
           ++ lib.optional useSharedHighway ../../deps/v8/third_party/highway
+          ++ lib.optional useSharedSimdutf ../../deps/v8/third_party/simdutf
         ));
       trackedFiles =
         ({
@@ -201,7 +204,9 @@ stdenv.mkDerivation (finalAttrs: {
         ''
     }
 
-    install -Dm644 deps/v8/third_party/simdutf/simdutf.h -t $out/include
+    ${lib.optionalString (
+      !useSharedSimdutf
+    ) "install -Dm644 deps/v8/third_party/simdutf/simdutf.h -t $out/include"}
     find deps/v8/include -name '*.h' -print0 | while read -r -d "" file; do
       install -Dm644 "$file" -T "$out/include/''${file#deps/v8/include/}"
     done
diff --git a/tools/v8_gypfiles/simdutf.gyp b/tools/v8_gypfiles/simdutf.gyp
new file mode 100644
index 000000000000..b5dc014bbe9f
--- /dev/null
+++ b/tools/v8_gypfiles/simdutf.gyp
@@ -0,0 +1,22 @@
+{
+  'includes': ['toolchain.gypi'],
+  'targets': [
+    {
+      'target_name': 'simdutf',
+      'type': 'static_library',
+      'toolsets': ['host', 'target'],
+      'variables': {
+        'SIMDUTF_ROOT': '../../deps/v8/third_party/simdutf',
+      },
+      'all_dependent_settings': {
+        'include_dirs': [
+          '<(SIMDUTF_ROOT)',
+        ],
+      },
+      'include_dirs': ['.'],
+      'sources': [
+        '<(SIMDUTF_ROOT)/simdutf.cpp',
+      ],
+    },  # simdutf
+  ],
+}
diff --git a/tools/v8_gypfiles/v8.gyp b/tools/v8_gypfiles/v8.gyp
index 819dffb88984..093be6e53956 100644
--- a/tools/v8_gypfiles/v8.gyp
+++ b/tools/v8_gypfiles/v8.gyp
@@ -650,7 +650,10 @@
         }],
         ['node_shared_highway=="false"', {
           'dependencies': ['highway.gyp:highway'],
-        }]
+        }],
+        ['node_shared_simdutf=="false"', {
+          'dependencies': ['simdutf.gyp:simdutf'],
+        }],
       ],
       'direct_dependent_settings': {
         'sources': [
@@ -1118,7 +1121,6 @@
         'v8_maybe_icu',
         'v8_zlib',
         'v8_pch',
-        'simdutf',
       ],
       'includes': ['inspector.gypi'],
       'direct_dependent_settings': {
@@ -2479,19 +2481,5 @@
         ],
       },
     },  # fp16
-    {
-      'target_name': 'simdutf',
-      'type': 'static_library',
-      'toolsets': ['host', 'target'],
-      'direct_dependent_settings': {
-        'include_dirs': [
-          '<(V8_ROOT)/third_party/simdutf',
-        ],
-      },
-      'include_dirs': ['.'],
-      'sources': [
-        '<(V8_ROOT)/third_party/simdutf/simdutf.cpp',
-      ],
-    },  # simdutf
   ],
 }