diff --git a/.gitmodules b/.gitmodules
index eb5efb3..0c7561d 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,3 @@
 [submodule "third_party/absl"]
 	path = third_party/absl
 	url = https://github.com/abseil/abseil-cpp.git
-[submodule "third_party/highway"]
-	path = third_party/highway
-	url = https://github.com/google/highway.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7de21d8..90f1652 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -8,11 +8,12 @@ pkg_check_modules(FFTW3 REQUIRED IMPORTED_TARGET fftw3f)
 find_package(Eigen3 REQUIRED)
 set(ABSL_PROPAGATE_CXX_STD YES)
 add_subdirectory(third_party/absl EXCLUDE_FROM_ALL)
-add_subdirectory(third_party/highway EXCLUDE_FROM_ALL)
 
 add_executable(driver_model driver_model/driver_model.cc)
 target_link_libraries(driver_model PkgConfig::SndFile)
 
+set(CMAKE_CXX_FLAGS  "${CMAKE_CXX_FLAGS} -mavx2")
+
 add_library(fourier_bank speaker_experiments/fourier_bank.h speaker_experiments/fourier_bank.cc)
 target_link_libraries(fourier_bank
   PkgConfig::SndFile
diff --git a/third_party/highway b/third_party/highway
deleted file mode 160000
index 63d7a7c..0000000
--- a/third_party/highway
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 63d7a7c0780063399c7b6d05f83079def81c6524