diff --git a/build-tools/.gn b/build-tools/.gn
index 2163c71..cc93d40 100644
--- a/build-tools/.gn
+++ b/build-tools/.gn
@@ -36,8 +36,6 @@ default_args = {
   v8_embedder_string = "-lightpanda"
 
   v8_enable_sandbox = false
-  v8_enable_javascript_promise_hooks = true
-  v8_promise_internal_field_count = 1
   v8_use_external_startup_data = false
 
   v8_enable_pointer_compression = true
@@ -96,4 +94,7 @@ default_args = {
   use_relative_vtables_abi = false
 
   icu_use_data_file = false
+
+  v8_enable_turbofan = true
+  v8_enable_webassembly = false
 }
diff --git a/build-tools/build_v8.sh b/build-tools/build_v8.sh
index b11106a..88d6286 100644
--- a/build-tools/build_v8.sh
+++ b/build-tools/build_v8.sh
@@ -17,20 +17,21 @@ if [ "${OS}" = "mac" ]; then
 fi
 OUT=out/${OUT_OS_PATH}/${MODE}
 
+EXTRA_ARGS=""
 if [[ ${MODE} == "release" ]]; then
   IS_DEBUG="false"
   SYMBOL_LEVEL="0"
 else
   IS_DEBUG="true"
   SYMBOL_LEVEL="1"
+  EXTRA_ARGS="v8_enable_object_print = true"
 fi
 
 mkdir -p src/zig
 cp BUILD.gn src/zig/
 
-EXTRA_ARGS=""
 if [ "${OS}" = "linux" ] && [ "${ARCH}" == "arm64" ]; then
-  EXTRA_ARGS="clang_base_path=\"/usr/lib/llvm-21\" clang_use_chrome_plugins=false treat_warnings_as_errors=false"
+  EXTRA_ARGS="${EXTRA_ARGS} clang_base_path=\"/usr/lib/llvm-21\" clang_use_chrome_plugins=false treat_warnings_as_errors=false"
 fi
 
 TARGET_ARCH=${ARCH}
@@ -49,7 +50,8 @@ tools/gn \
     host_cpu=\"${TARGET_ARCH}\"
     is_debug=${IS_DEBUG}
     symbol_level=${SYMBOL_LEVEL}
-    is_official_build=false ${EXTRA_ARGS}
+    is_official_build=false
+    ${EXTRA_ARGS}
   "
 
 tools/ninja -C ${OUT} "c_v8"