diff --git a/CMakeLists.txt b/CMakeLists.txt
index 95cf4e4..f86310c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,7 +17,7 @@ else()
   enable_language(ASM)
 endif()
 
-set(BARE_ENGINE "github:holepunchto/libjs#e8631d3" CACHE STRING "The JavaScript engine to use")
+set(BARE_ENGINE "github:holepunchto/libjs#20eccc3" CACHE STRING "The JavaScript engine to use")
 
 set(BARE_PREBUILDS ON CACHE BOOL "Enable prebuilds for supported third-party dependencies")
 
@@ -31,7 +31,7 @@ if(BARE_PREBUILDS AND BARE_ENGINE MATCHES "github:holepunchto/libjs(#|@|$)")
     SOURCE qogbhqbcxknrpeotyz7hk4x3mxuf6d9mhb1dxm6ms5sdn6hh1uso
     DESTINATION ${PROJECT_SOURCE_DIR}/prebuilds
     PREFIX /${target}
-    CHECKOUT 793
+    CHECKOUT 806
   )
 
   add_library(c++ STATIC IMPORTED GLOBAL)
@@ -157,7 +157,7 @@ endif()
 
 fetch_package("${BARE_ENGINE}")
 
-fetch_package("github:holepunchto/libnapi#3d7a8eb")
+fetch_package("github:holepunchto/libnapi#83aa500")
 
 add_bare_bundle(
   bare_bundle
diff --git a/src/js.def b/src/js.def
index 4a408f0..776fd98 100644
--- a/src/js.def
+++ b/src/js.def
@@ -23,6 +23,7 @@ EXPORTS
 	js_create_arraybuffer_with_backing_store
 	js_create_bigint_int64
 	js_create_bigint_uint64
+	js_create_bigint_words
 	js_create_context
 	js_create_dataview
 	js_create_date
@@ -125,6 +126,7 @@ EXPORTS
 	js_get_undefined
 	js_get_value_bigint_int64
 	js_get_value_bigint_uint64
+	js_get_value_bigint_words
 	js_get_value_bool
 	js_get_value_date
 	js_get_value_double
diff --git a/src/napi.def b/src/napi.def
index 18ba87b..c69d54c 100644
--- a/src/napi.def
+++ b/src/napi.def
@@ -35,6 +35,7 @@ EXPORTS
 	napi_create_async_work
 	napi_create_bigint_int64
 	napi_create_bigint_uint64
+	napi_create_bigint_words
 	napi_create_buffer
 	napi_create_buffer_copy
 	napi_create_dataview
@@ -93,6 +94,7 @@ EXPORTS
 	napi_get_uv_event_loop
 	napi_get_value_bigint_int64
 	napi_get_value_bigint_uint64
+	napi_get_value_bigint_words
 	napi_get_value_bool
 	napi_get_value_date
 	napi_get_value_double