diff --git a/Cargo.lock b/Cargo.lock
index 237e92d..c72e032 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -814,22 +814,22 @@ checksum = "8f50febec83f5ee1df3015341d8bd429f2d1cc62bcba7ea2076759d315084683"
 
 [[package]]
 name = "thiserror"
-version = "1.0.69"
+version = "2.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b6aaf5339b578ea85b50e080feb250a3e8ae8cfcdff9a461c9ec2904bc923f52"
+checksum = "09e52cb86a36cede5cb101bf8908837b3e4c6e5e59fe7fd85c23fb56200d189e"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.69"
+version = "2.0.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fee6c4efc90059e10f81e6d42c60a18f76588c3d74cb83a0b242a2b6c7504c1"
+checksum = "fe5197923287db20a58125f0bc85c062f7f2c892de97b18c356f9efb14b28524"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.117",
+ "syn 3.0.9",
 ]
 
 [[package]]
diff --git a/crates/comparegraph/Cargo.toml b/crates/comparegraph/Cargo.toml
index 4d1ef5e..24e27ea 100644
--- a/crates/comparegraph/Cargo.toml
+++ b/crates/comparegraph/Cargo.toml
@@ -25,7 +25,7 @@ serde_json = { version = "1", features = ["preserve_order", "arbitrary_precision
 sha2 = "0.11"
 hex = "0.4"
 ignore = "0.4"
-thiserror = "1"
+thiserror = "2"
 tree-sitter = "0.25"
 tree-sitter-typescript = "0.23"
 tree-sitter-javascript = "0.25"