diff --git a/Cargo.lock b/Cargo.lock
index a5d02c3c..6b7a6e2e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -151,7 +151,7 @@ dependencies = [
  "rand_core",
  "ring",
  "socket2",
- "thiserror 1.0.69",
+ "thiserror 2.0.18",
  "tracing",
  "tracing-subscriber",
  "untrusted",
diff --git a/boringtun/Cargo.toml b/boringtun/Cargo.toml
index 9fb56f59..c94bf6ae 100644
--- a/boringtun/Cargo.toml
+++ b/boringtun/Cargo.toml
@@ -45,7 +45,7 @@ hmac = "0.12"
 jni = { version = "0.19.0", optional = true }
 mock_instant = { version = "0.3", optional = true }
 socket2 = { version = "0.4.7", features = ["all"], optional = true }
-thiserror = { version = "1", optional = true }
+thiserror = { version = "2", optional = true }
 
 [target.'cfg(unix)'.dependencies]
 nix = { version = "0.31", default-features = false, features = [