diff --git a/Cargo.lock b/Cargo.lock
index f70f013d4..67d4a2a3c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -384,7 +384,7 @@ dependencies = [
  "bitflags 2.6.0",
  "cexpr",
  "clang-sys",
- "itertools 0.12.1",
+ "itertools 0.10.5",
  "lazy_static",
  "lazycell",
  "log",
@@ -1819,7 +1819,7 @@ dependencies = [
  "gosub_render_backend",
  "gosub_shared",
  "gosub_typeface",
- "itertools 0.12.1",
+ "itertools 0.13.0",
  "lazy_static",
  "log",
  "memoize",
@@ -2462,6 +2462,15 @@ dependencies = [
  "either",
 ]
 
+[[package]]
+name = "itertools"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.11"
diff --git a/crates/gosub_styling/Cargo.toml b/crates/gosub_styling/Cargo.toml
index d16d617cc..04902d6f6 100644
--- a/crates/gosub_styling/Cargo.toml
+++ b/crates/gosub_styling/Cargo.toml
@@ -24,7 +24,7 @@ rand = "0.9.0-alpha.1"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
 rust-fontconfig = "0.1.7"
-itertools = "0.12.1"
+itertools = "0.13.0"
 serde = { version = "1.0.209", features = ["derive"] }
 serde_json = "1.0.128"
 memoize = "0.4.2"