diff --git a/Cargo.lock b/Cargo.lock
index 8f3e718f..c95e826e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -508,18 +508,18 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.40"
+version = "2.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
+checksum = "567b8a2dae586314f7be2a752ec7474332959c6460e02bde30d702a66d488708"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.40"
+version = "2.0.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
+checksum = "7f7cf42b4507d8ea322120659672cf1b9dbb93f8f2d4ecfd6e51350ff5b17a1d"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/traits/Cargo.toml b/traits/Cargo.toml
index bedd6c65..bf021133 100644
--- a/traits/Cargo.toml
+++ b/traits/Cargo.toml
@@ -13,7 +13,7 @@ edition = "2018"
 path = "./traits.rs"
 
 [dependencies]
-thiserror = "1.0"
+thiserror = "2.0"
 anyhow = "1.0"
 wasmparser = "0.80.0"
 twiggy-ir = { version = "=0.7.0", path = "../ir" }