diff --git a/wasm/textprocessing/hangeul_conversion/Cargo.toml b/wasm/textprocessing/hangeul_conversion/Cargo.toml
index d825cec4..addaae7e 100644
--- a/wasm/textprocessing/hangeul_conversion/Cargo.toml
+++ b/wasm/textprocessing/hangeul_conversion/Cargo.toml
@@ -4,4 +4,4 @@ version = "0.1.0"
 edition = "2024"
 
 [dependencies]
-itertools = "0.14.0"
+itertools = "0.15.0"