diff --git a/deps/v8/include/v8-version.h b/deps/v8/include/v8-version.h
index 55d44e4bafab67..8970c573efda6f 100644
--- a/deps/v8/include/v8-version.h
+++ b/deps/v8/include/v8-version.h
@@ -11,7 +11,7 @@
 #define V8_MAJOR_VERSION 7
 #define V8_MINOR_VERSION 9
 #define V8_BUILD_NUMBER 317
-#define V8_PATCH_LEVEL 22
+#define V8_PATCH_LEVEL 23
 
 // Use 1 for candidates and 0 otherwise.
 // (Boolean macro values are not supported by all preprocessors.)
diff --git a/deps/v8/src/objects/backing-store.cc b/deps/v8/src/objects/backing-store.cc
index 7f6d2251a78a70..cc6741765e1962 100644
--- a/deps/v8/src/objects/backing-store.cc
+++ b/deps/v8/src/objects/backing-store.cc
@@ -605,8 +605,14 @@ std::shared_ptr<BackingStore> GlobalBackingStoreRegistry::Lookup(
     return std::shared_ptr<BackingStore>();
   }
   auto backing_store = result->second.lock();
-  DCHECK_EQ(buffer_start, backing_store->buffer_start());
-  DCHECK_EQ(length, backing_store->byte_length());
+  CHECK_EQ(buffer_start, backing_store->buffer_start());
+  if (backing_store->is_wasm_memory()) {
+    // Grow calls to shared WebAssembly threads can be triggered from different
+    // workers, length equality cannot be guaranteed here.
+    CHECK_LE(length, backing_store->byte_length());
+  } else {
+    CHECK_EQ(length, backing_store->byte_length());
+  }
   return backing_store;
 }