diff --git a/Cargo.lock b/Cargo.lock
index 27531e7..cca935d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1301,6 +1301,21 @@ dependencies = [
  "zerovec 0.11.6",
 ]
 
+[[package]]
+name = "icu_locale"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5a396343c7208121dc86e35623d3dfe19814a7613cfd14964994cdc9c9a2e26"
+dependencies = [
+ "icu_collections 2.2.0",
+ "icu_locale_core",
+ "icu_locale_data",
+ "icu_provider 2.2.0",
+ "potential_utf",
+ "tinystr 0.8.3",
+ "zerovec 0.11.6",
+]
+
 [[package]]
 name = "icu_locale_core"
 version = "2.2.0"
@@ -1309,11 +1324,18 @@ checksum = "92219b62b3e2b4d88ac5119f8904c10f8f61bf7e95b640d25ba3075e6cac2c29"
 dependencies = [
  "displaydoc",
  "litemap 0.8.2",
+ "serde",
  "tinystr 0.8.3",
  "writeable 0.6.3",
  "zerovec 0.11.6",
 ]
 
+[[package]]
+name = "icu_locale_data"
+version = "2.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5fdcc9ac77c6d74ff5cf6e65ef3181d6af32003b16fce3a77fb451d2f695993"
+
 [[package]]
 name = "icu_locid"
 version = "1.5.0"
@@ -1457,6 +1479,8 @@ checksum = "139c4cf31c8b5f33d7e199446eff9c1e02decfc2f0eec2c8d71f65befa45b421"
 dependencies = [
  "displaydoc",
  "icu_locale_core",
+ "serde",
+ "stable_deref_trait",
  "writeable 0.6.3",
  "yoke 0.8.3",
  "zerofrom",
@@ -1477,25 +1501,25 @@ dependencies = [
 
 [[package]]
 name = "icu_segmenter"
-version = "1.5.0"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a717725612346ffc2d7b42c94b820db6908048f39434504cb130e8b46256b0de"
+checksum = "5c0794db0b1a86193ac9c48768d0e6c52c54448e0870ad87907d456ee0dac964"
 dependencies = [
  "core_maths",
- "displaydoc",
- "icu_collections 1.5.0",
- "icu_locid",
- "icu_provider 1.5.0",
+ "icu_collections 2.2.0",
+ "icu_locale",
+ "icu_provider 2.2.0",
  "icu_segmenter_data",
+ "potential_utf",
  "utf8_iter",
- "zerovec 0.10.4",
+ "zerovec 0.11.6",
 ]
 
 [[package]]
 name = "icu_segmenter_data"
-version = "1.5.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1e52775179941363cc594e49ce99284d13d6948928d8e72c755f55e98caa1eb"
+checksum = "e4a2c462a4d927d512f5f882a033ddd62f33a05bb9f230d98f736ac3dc85938f"
 
 [[package]]
 name = "id-arena"
@@ -2238,6 +2262,8 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0103b1cef7ec0cf76490e969665504990193874ea05c85ff9bab8b911d0a0564"
 dependencies = [
+ "serde_core",
+ "writeable 0.6.3",
  "zerovec 0.11.6",
 ]
 
@@ -3953,6 +3979,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c8323304221c2a851516f22236c5722a72eaa19749016521d6dff0824447d96d"
 dependencies = [
  "displaydoc",
+ "serde_core",
  "zerovec 0.11.6",
 ]
 
@@ -4937,6 +4964,7 @@ dependencies = [
  "displaydoc",
  "yoke 0.8.3",
  "zerofrom",
+ "zerovec 0.11.6",
 ]
 
 [[package]]
@@ -4956,6 +4984,7 @@ version = "0.11.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90f911cbc359ab6af17377d242225f4d75119aec87ea711a880987b18cd7b239"
 dependencies = [
+ "serde",
  "yoke 0.8.3",
  "zerofrom",
  "zerovec-derive 0.11.3",
diff --git a/crates/stringcheese-segment/Cargo.toml b/crates/stringcheese-segment/Cargo.toml
index 2e19c16..8d45333 100644
--- a/crates/stringcheese-segment/Cargo.toml
+++ b/crates/stringcheese-segment/Cargo.toml
@@ -24,7 +24,7 @@ icu = ["dep:icu_segmenter", "std"]
 uax14-lines = ["dep:unicode-linebreak", "std"]
 
 [dependencies]
-icu_segmenter    = { version = "1.5", optional = true, features = ["compiled_data"] }
+icu_segmenter    = { version = "2.2", optional = true, features = ["compiled_data"] }
 unicode-linebreak = { version = "0.1", optional = true }
 
 # `proptest` gated off wasm — its transitive `wait-timeout` dep is