diff --git a/Cargo.lock b/Cargo.lock
index c300a3ea..0fd5ecea 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3440,9 +3440,9 @@ dependencies = [
 
 [[package]]
 name = "endian-type"
-version = "0.1.2"
+version = "0.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c34f04666d835ff5d62e058c3995147c06f42fe86ff053337632bca83e42702d"
+checksum = "869b0adbda23651a9c5c0c3d270aac9fcb52e8622a8f2b17e57802d7791962f2"
 
 [[package]]
 name = "enum-as-inner"
@@ -3628,17 +3628,6 @@ dependencies = [
  "syn 2.0.117",
 ]
 
-[[package]]
-name = "fd-lock"
-version = "4.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0ce92ff622d6dadf7349484f42c93271a0d49b7cc4d466a936405bacbe10aa78"
-dependencies = [
- "cfg-if",
- "rustix 1.1.4",
- "windows-sys 0.59.0",
-]
-
 [[package]]
 name = "fdeflate"
 version = "0.3.7"
@@ -6223,18 +6212,6 @@ dependencies = [
  "smallvec",
 ]
 
-[[package]]
-name = "nix"
-version = "0.29.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71e2746dc3a24dd78b3cfcb7be93368c6de9963d30f43a6a73998a9cf4b17b46"
-dependencies = [
- "bitflags 2.11.0",
- "cfg-if",
- "cfg_aliases",
- "libc",
-]
-
 [[package]]
 name = "nix"
 version = "0.31.2"
@@ -7415,7 +7392,7 @@ checksum = "2e842efad9119158434d193c6682e2ebee4b44d6ad801d7b349623b3f57cdf55"
 dependencies = [
  "futures",
  "indexmap 2.14.0",
- "nix 0.31.2",
+ "nix",
  "tokio",
  "tracing",
  "windows 0.62.2",
@@ -7670,9 +7647,9 @@ checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
 
 [[package]]
 name = "radix_trie"
-version = "0.2.1"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c069c179fcdc6a2fe24d8d18305cf085fdbd4f922c041943e203685d6a1c58fd"
+checksum = "3b4431027dcd37fc2a73ef740b5f233aa805897935b8bce0195e41bbf9a3289a"
 dependencies = [
  "endian-type",
  "nibble_vec",
@@ -8358,24 +8335,23 @@ checksum = "b39cdef0fa800fc44525c84ccb54a029961a8215f9619753635a9c0d2538d46d"
 
 [[package]]
 name = "rustyline"
-version = "15.0.0"
+version = "18.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ee1e066dc922e513bda599c6ccb5f3bb2b0ea5870a579448f2622993f0a9a2f"
+checksum = "4a990b25f351b25139ddc7f21ee3f6f56f86d6846b74ac8fad3a719a287cd4a0"
 dependencies = [
  "bitflags 2.11.0",
  "cfg-if",
  "clipboard-win",
- "fd-lock",
  "home",
  "libc",
  "log",
  "memchr",
- "nix 0.29.0",
+ "nix",
  "radix_trie",
  "unicode-segmentation",
  "unicode-width 0.2.2",
  "utf8parse",
- "windows-sys 0.59.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
diff --git a/crates/goose-cli/Cargo.toml b/crates/goose-cli/Cargo.toml
index 8e9a07b3..bea6b8cd 100644
--- a/crates/goose-cli/Cargo.toml
+++ b/crates/goose-cli/Cargo.toml
@@ -39,7 +39,7 @@ strum = { workspace = true }
 tempfile = { workspace = true }
 etcetera = { workspace = true }
 rand = { workspace = true }
-rustyline = "15.0.0"
+rustyline = "18.0.0"
 tracing = { workspace = true }
 chrono = { workspace = true }
 tracing-subscriber = { workspace = true, features = ["env-filter", "fmt", "json", "time"] }
diff --git a/crates/goose-cli/src/session/input.rs b/crates/goose-cli/src/session/input.rs
index 2641a77b..6fd89201 100644
--- a/crates/goose-cli/src/session/input.rs
+++ b/crates/goose-cli/src/session/input.rs
@@ -58,7 +58,7 @@ impl rustyline::ConditionalEventHandler for CtrlCHandler {
     fn handle(
         &self,
         _event: &rustyline::Event,
-        _n: usize,
+        _n: u16,
         _positive: bool,
         ctx: &rustyline::EventContext,
     ) -> Option<rustyline::Cmd> {