diff --git a/packages/react-native-executorch/react-native-executorch.podspec b/packages/react-native-executorch/react-native-executorch.podspec
index 41a6baad84..d59ba14ca9 100644
--- a/packages/react-native-executorch/react-native-executorch.podspec
+++ b/packages/react-native-executorch/react-native-executorch.podspec
@@ -326,6 +326,8 @@ Pod::Spec.new do |s|
       "\"$(PODS_TARGET_SRCROOT)/third-party/include/executorch/extension/llm/tokenizers/third-party/re2\"",
       "\"$(PODS_TARGET_SRCROOT)/third-party/include/executorch/extension/llm/tokenizers/third-party/abseil-cpp\"",
       "\"$(PODS_TARGET_SRCROOT)/third-party/common/phonemis/src\"",
+      # phonemis's vendored xsimd includes itself as `xsimd/...` (its CMakeLists adds this too).
+      "\"$(PODS_TARGET_SRCROOT)/third-party/common/phonemis/src/third-party\"",
     ].join(' '),
     "WARNING_CFLAGS" => "-Wno-documentation",
     'EXCLUDED_ARCHS[sdk=iphonesimulator*]' => 'x86_64',
diff --git a/packages/react-native-executorch/third-party/common/phonemis b/packages/react-native-executorch/third-party/common/phonemis
index a72ef9092c..68c81c61b4 160000
--- a/packages/react-native-executorch/third-party/common/phonemis
+++ b/packages/react-native-executorch/third-party/common/phonemis
@@ -1 +1 @@
-Subproject commit a72ef9092c80a86d963b590b4aa0a4e813270bc3
+Subproject commit 68c81c61b423e997aeefb65fbb4854d9a0b919fe