diff --git a/native/html5ever_nif/Cargo.lock b/native/html5ever_nif/Cargo.lock
index 6542747..59be24d 100644
--- a/native/html5ever_nif/Cargo.lock
+++ b/native/html5ever_nif/Cargo.lock
@@ -55,16 +55,14 @@ checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "html5ever"
-version = "0.27.0"
+version = "0.29.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c13771afe0e6e846f1e67d038d4cb29998a6779f93c809212e4e9c32efd244d4"
+checksum = "3b7410cae13cbc75623c98ac4cbfd1f0bedddf3227afc24f370cf0f50a44a11c"
 dependencies = [
  "log",
  "mac",
- "markup5ever",
- "proc-macro2",
- "quote",
- "syn",
+ "markup5ever 0.14.1",
+ "match_token",
 ]
 
 [[package]]
@@ -73,7 +71,7 @@ version = "0.1.0"
 dependencies = [
  "html5ever",
  "lazy_static",
- "markup5ever",
+ "markup5ever 0.12.1",
  "rustler",
  "tendril",
  "thiserror",
@@ -146,6 +144,31 @@ dependencies = [
  "tendril",
 ]
 
+[[package]]
+name = "markup5ever"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7a7213d12e1864c0f002f52c2923d4556935a43dec5e71355c2760e0f6e7a18"
+dependencies = [
+ "log",
+ "phf",
+ "phf_codegen",
+ "string_cache",
+ "string_cache_codegen",
+ "tendril",
+]
+
+[[package]]
+name = "match_token"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "88a9689d8d44bf9964484516275f5cd4c9b59457a6940c1d5d0ecbb94510a36b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "new_debug_unreachable"
 version = "1.0.6"
diff --git a/native/html5ever_nif/Cargo.toml b/native/html5ever_nif/Cargo.toml
index c29bafb..4c55382 100644
--- a/native/html5ever_nif/Cargo.toml
+++ b/native/html5ever_nif/Cargo.toml
@@ -13,7 +13,7 @@ crate-type = ["cdylib"]
 # See the Precompilation guide for details about the features: https://github.com/philss/rustler_precompiled/blob/main/PRECOMPILATION_GUIDE.md
 rustler = { version = "0.36", default-features = false, features = ["nif_version_2_15"] }
 
-html5ever = "0.27"
+html5ever = "0.29"
 markup5ever = "0.12"
 
 tendril = "0.4"