diff --git a/crypto/Cargo.toml b/crypto/Cargo.toml
index 1b74e5a..7dc0afa 100644
--- a/crypto/Cargo.toml
+++ b/crypto/Cargo.toml
@@ -16,7 +16,7 @@ ed25519-dalek = { version = "3.0", optional = true, features = [
 hkdf = { version = "0.13", optional = true }
 sha2 = { version = "0.11", optional = true }
 zeroize = { version = "1.9", features = ["derive"] }
-thiserror = "1"
+thiserror = "2"
 base64 = "0.23"
 rand_core = { version = "0.10.1" }
 rand = "0.10.2"
diff --git a/files/Cargo.toml b/files/Cargo.toml
index 2fba8a5..4dcecde 100644
--- a/files/Cargo.toml
+++ b/files/Cargo.toml
@@ -9,5 +9,5 @@ edition = "2024"
 mtp-crypto = { version = "0.2.0", path = "../crypto", default-features = false, features = ["chacha20poly1305", "hkdf"] }
 rand = "0.10.2"
 
-thiserror = "1"
+thiserror = "2"
 zeroize = "1.9"