diff --git a/Cargo.lock b/Cargo.lock
index 3adfcbb7..0e18ed23 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -658,12 +658,12 @@ dependencies = [
 
 [[package]]
 name = "html5ever"
-version = "0.36.1"
+version = "0.38.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6452c4751a24e1b99c3260d505eaeee76a050573e61f30ac2c924ddc7236f01e"
+checksum = "1054432bae2f14e0061e33d23402fbaa67a921d319d56adc6bcf887ddad1cbc2"
 dependencies = [
  "log",
- "markup5ever 0.36.1",
+ "markup5ever 0.38.0",
 ]
 
 [[package]]
@@ -899,17 +899,17 @@ dependencies = [
  "phf_codegen 0.10.0",
  "string_cache 0.8.9",
  "string_cache_codegen 0.5.4",
- "tendril",
+ "tendril 0.4.3",
 ]
 
 [[package]]
 name = "markup5ever"
-version = "0.36.1"
+version = "0.38.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6c3294c4d74d0742910f8c7b466f44dda9eb2d5742c1e430138df290a1e8451c"
+checksum = "8983d30f2915feeaaab2d6babdd6bc7e9ed1a00b66b5e6d74df19aa9c0e91862"
 dependencies = [
  "log",
- "tendril",
+ "tendril 0.5.0",
  "web_atoms",
 ]
 
@@ -921,7 +921,7 @@ checksum = "b9521dd6750f8e80ee6c53d65e2e4656d7de37064f3a7a5d2d11d05df93839c2"
 dependencies = [
  "html5ever 0.26.0",
  "markup5ever 0.11.0",
- "tendril",
+ "tendril 0.4.3",
  "xml5ever",
 ]
 
@@ -1025,7 +1025,7 @@ dependencies = [
  "font-awesome-as-a-crate",
  "handlebars",
  "hex",
- "html5ever 0.36.1",
+ "html5ever 0.38.0",
  "indexmap",
  "mdbook-core",
  "mdbook-markdown",
@@ -1931,6 +1931,16 @@ dependencies = [
  "utf-8",
 ]
 
+[[package]]
+name = "tendril"
+version = "0.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4790fc369d5a530f4b544b094e31388b9b3a37c0f4652ade4505945f5660d24"
+dependencies = [
+ "new_debug_unreachable",
+ "utf-8",
+]
+
 [[package]]
 name = "terminal_size"
 version = "0.4.3"
diff --git a/Cargo.toml b/Cargo.toml
index d4d19e62..158bc592 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -36,7 +36,7 @@ futures-util = "0.3.31"
 glob = "0.3.3"
 handlebars = "6.4.0"
 hex = "0.4.3"
-html5ever = "0.36.1"
+html5ever = "0.38.0"
 indexmap = "2.13.0"
 ignore = "0.4.25"
 mdbook-core = { path = "crates/mdbook-core", version = "0.5.2" }