diff --git a/Cargo.lock b/Cargo.lock
index bd122a6d2..318d8a860 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2841,16 +2841,6 @@ dependencies = [
  "memchr",
 ]
 
-[[package]]
-name = "ctor"
-version = "0.2.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32a2785755761f3ddc1492979ce1e48d2c00d09311c39e4466429188f3dd6501"
-dependencies = [
- "quote",
- "syn 2.0.118",
-]
-
 [[package]]
 name = "ctor"
 version = "0.6.3"
@@ -4939,7 +4929,7 @@ dependencies = [
  "candle-transformers",
  "chrono",
  "clap",
- "ctor 0.2.9",
+ "ctor",
  "dirs",
  "dotenvy",
  "dtor 1.0.5",
@@ -13924,7 +13914,7 @@ dependencies = [
  "chrono",
  "colored",
  "const-str",
- "ctor 0.6.3",
+ "ctor",
  "dirs",
  "futures",
  "git-version",
diff --git a/crates/goose/Cargo.toml b/crates/goose/Cargo.toml
index f826767f5..e2e916ec4 100644
--- a/crates/goose/Cargo.toml
+++ b/crates/goose/Cargo.toml
@@ -251,7 +251,7 @@ wiremock = { workspace = true }
 tokio = { workspace = true }
 tokio-util = { workspace = true, features = ["compat"] }
 dotenvy = { workspace = true }
-ctor = { version = "0.2", default-features = false }
+ctor = { version = "0.6", default-features = false, features = ["proc_macro"] }
 test-case = { workspace = true }
 env-lock = { workspace = true }
 rmcp = { workspace = true, features = ["transport-streamable-http-server"] }
diff --git a/crates/goose/tests/subprocess_cleanup.rs b/crates/goose/tests/subprocess_cleanup.rs
index 42ec6a964..ae58d421a 100644
--- a/crates/goose/tests/subprocess_cleanup.rs
+++ b/crates/goose/tests/subprocess_cleanup.rs
@@ -8,8 +8,8 @@ use std::time::{Duration, Instant};
 
 const HELPER_ENV: &str = "GOOSE_SUBPROCESS_PARENT_DEATH_HELPER";
 
-#[ctor::ctor(unsafe)]
-fn maybe_run_helper() {
+#[ctor::ctor]
+unsafe fn maybe_run_helper() {
     if std::env::var_os(HELPER_ENV).is_none() {
         return;
     }