diff --git a/bazel/external/wee8.BUILD b/bazel/external/wee8.BUILD
index 3a62ecd9ebf4..ce16c32af799 100644
--- a/bazel/external/wee8.BUILD
+++ b/bazel/external/wee8.BUILD
@@ -9,15 +9,18 @@ cc_library(
     srcs = [
         "libwee8.a",
     ],
-    hdrs = [
-        "wee8/include/v8-version.h",
-        "wee8/third_party/wasm-api/wasm.hh",
-    ],
+    hdrs =
+        glob([
+            "wee8/include/**/*.h",
+            "wee8/src/**/*.h",
+            "wee8/third_party/wasm-api/wasm.hh",
+        ]),
     copts = [
         "-Wno-range-loop-analysis",
     ],
     defines = ["ENVOY_WASM_V8"],
     includes = [
+        "wee8",
         "wee8/include",
         "wee8/third_party",
     ],
diff --git a/bazel/external/wee8.patch b/bazel/external/wee8.patch
index cce3eecde614..50255793070e 100644
--- a/bazel/external/wee8.patch
+++ b/bazel/external/wee8.patch
@@ -1,9 +1,10 @@
 # 1. Fix linking with unbundled toolchain on macOS.
 # 2. Increase VSZ limit to 4TiB (allows us to start up to 409 VMs).
 # 3. Fix MSAN linking.
+# 4. Fix Wasm module deserialization (http://crbug.com/v8/11024).
 --- wee8/build/toolchain/gcc_toolchain.gni
 +++ wee8/build/toolchain/gcc_toolchain.gni
-@@ -329,6 +329,8 @@ template("gcc_toolchain") {
+@@ -348,6 +348,8 @@ template("gcc_toolchain") {
          # AIX does not support either -D (deterministic output) or response
          # files.
          command = "$ar -X64 {{arflags}} -r -c -s {{output}} {{inputs}}"
@@ -12,7 +13,7 @@
        } else {
          rspfile = "{{output}}.rsp"
          rspfile_content = "{{inputs}}"
-@@ -507,7 +509,7 @@ template("gcc_toolchain") {
+@@ -543,7 +545,7 @@ template("gcc_toolchain") {
 
        start_group_flag = ""
        end_group_flag = ""
@@ -51,5 +52,17 @@
 -    is_msan && (msan_track_origins == 0 || msan_track_origins == 2)
 +prebuilt_instrumented_libraries_available = false
 
- if (use_libfuzzer && is_linux) {
+ if (use_libfuzzer && (is_linux || is_chromeos)) {
    if (is_asan) {
+--- wee8/src/wasm/module-compiler.cc
++++ wee8/src/wasm/module-compiler.cc
+@@ -2901,6 +2901,9 @@ void CompilationStateImpl::InitializeCompilationProgressAfterDeserialization() {
+       RequiredBaselineTierField::encode(ExecutionTier::kTurbofan) |
+       RequiredTopTierField::encode(ExecutionTier::kTurbofan) |
+       ReachedTierField::encode(ExecutionTier::kTurbofan);
++  finished_events_.Add(CompilationEvent::kFinishedExportWrappers);
++  finished_events_.Add(CompilationEvent::kFinishedBaselineCompilation);
++  finished_events_.Add(CompilationEvent::kFinishedTopTierCompilation);
+   compilation_progress_.assign(module->num_declared_functions,
+                                kProgressAfterDeserialization);
+ }
diff --git a/bazel/repository_locations.bzl b/bazel/repository_locations.bzl
index c9a3dbd343c9..974c9deea62b 100644
--- a/bazel/repository_locations.bzl
+++ b/bazel/repository_locations.bzl
@@ -651,10 +651,10 @@ REPOSITORY_LOCATIONS_SPEC = dict(
         project_name = "V8",
         project_desc = "Google’s open source high-performance JavaScript and WebAssembly engine, written in C++",
         project_url = "https://v8.dev",
-        version = "8.5.210.20",
+        version = "8.7.220.10",
         # This archive was created using https://storage.googleapis.com/envoyproxy-wee8/wee8-archive.sh
         # and contains complete checkout of V8 with all dependencies necessary to build wee8.
-        sha256 = "ef404643d7da6854b76b9fb9950a79a1acbd037b7a26f02c585ac379b0f7dee1",
+        sha256 = "f22734640e0515bc34d1ca3772513aef24374fafa44d0489d3a9a57cadec69fb",
         urls = ["https://storage.googleapis.com/envoyproxy-wee8/wee8-{version}.tar.gz"],
         use_category = ["dataplane_ext"],
         extensions = [
@@ -664,7 +664,7 @@ REPOSITORY_LOCATIONS_SPEC = dict(
             "envoy.filters.network.wasm",
             "envoy.stat_sinks.wasm",
         ],
-        release_date = "2020-08-17",
+        release_date = "2020-10-27",
         cpe = "cpe:2.3:a:google:v8:*",
     ),
     com_googlesource_quiche = dict(
diff --git a/test/tools/wee8_compile/wee8_compile.cc b/test/tools/wee8_compile/wee8_compile.cc
index a1b2906ab281..fe257a95e1a6 100644
--- a/test/tools/wee8_compile/wee8_compile.cc
+++ b/test/tools/wee8_compile/wee8_compile.cc
@@ -1,12 +1,13 @@
 // NOLINT(namespace-envoy)
 
-#include <unistd.h>
-
+#include <chrono>
 #include <fstream>
 #include <iostream>
 #include <sstream>
+#include <thread>
 #include <vector>
 
+#include "src/wasm/c-api.h"
 #include "v8-version.h"
 #include "wasm-api/wasm.hh"
 
@@ -166,8 +167,11 @@ wasm::vec<byte_t> serializeWasmModule(const char* path, const wasm::vec<byte_t>&
     return wasm::vec<byte_t>::invalid();
   }
 
-  // TODO(PiotrSikora): figure out how to hook the completion callback.
-  sleep(3);
+  wasm::StoreImpl* store_impl = reinterpret_cast<wasm::StoreImpl*>(store.get());
+  auto isolate = store_impl->isolate();
+  while (isolate->HasPendingBackgroundTasks()) {
+    std::this_thread::sleep_for(std::chrono::milliseconds(50));
+  }
 
   return module->serialize();
 }
diff --git a/tools/code_format/check_format.py b/tools/code_format/check_format.py
index bb25f20cba44..ebe10e9ba133 100755
--- a/tools/code_format/check_format.py
+++ b/tools/code_format/check_format.py
@@ -58,7 +58,7 @@
     "./test/test_common/simulated_time_system.cc", "./test/test_common/simulated_time_system.h",
     "./test/test_common/test_time.cc", "./test/test_common/test_time.h",
     "./test/test_common/utility.cc", "./test/test_common/utility.h",
-    "./test/integration/integration.h")
+    "./test/integration/integration.h", "./test/tools/wee8_compile/wee8_compile.cc")
 
 # Tests in these paths may make use of the Registry::RegisterFactory constructor or the
 # REGISTER_FACTORY macro. Other locations should use the InjectFactory helper class to