diff --git a/Cargo.lock b/Cargo.lock
index f106012a..89b1d7d4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1778,7 +1778,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8d162beedaa69905488a8da94f5ac3edb4dd4788b732fadb7bd120b2625c1976"
 dependencies = [
  "data-encoding",
- "syn 2.0.111",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -7528,7 +7528,7 @@ dependencies = [
  "futures",
  "serde",
  "serde_json",
- "thiserror 1.0.69",
+ "thiserror 2.0.17",
  "tokio",
  "uuid",
 ]
@@ -7541,7 +7541,7 @@ dependencies = [
  "async-trait",
  "serde",
  "synapse-core",
- "thiserror 1.0.69",
+ "thiserror 2.0.17",
  "tokio",
  "tracing",
 ]
@@ -7575,7 +7575,7 @@ dependencies = [
  "surrealdb",
  "synapse-core",
  "tempfile",
- "thiserror 1.0.69",
+ "thiserror 2.0.17",
  "tokenizers",
  "tokio",
  "tracing",
diff --git a/Cargo.toml b/Cargo.toml
index f4eaf5d5..ffae8318 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,7 +23,7 @@ serde = { version = "1", features = ["derive"] }
 serde_json = "1"
 
 # Error handling
-thiserror = "1"
+thiserror = "2"
 anyhow = "1"
 
 # Async traits