diff --git a/Cargo.lock b/Cargo.lock
index 3d895056..d8fc6db3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2005,7 +2005,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39cab71617ae0d63f51a36d69f866391735b51691dbda63cf6f96d042b63efeb"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.61.2",
 ]
 
 [[package]]
@@ -6029,9 +6029,9 @@ dependencies = [
 
 [[package]]
 name = "rmcp"
-version = "0.15.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1bef41ebc9ebed2c1b1d90203e9d1756091e8a00bbc3107676151f39868ca0ee"
+checksum = "1d1f571c72940a19d9532fe52dbea8bc9912bf1d766c2970bb824056b86f3f59"
 dependencies = [
  "async-trait",
  "base64",
@@ -6051,9 +6051,9 @@ dependencies = [
 
 [[package]]
 name = "rmcp-macros"
-version = "0.15.0"
+version = "1.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0e88ad84b8b6237a934534a62b379a5be6388915663c0cc598ceb9b3292bbbfe"
+checksum = "1aad0035b69380782d78ea95b508327e6deaa2235909053e596eea8f27b5e1d5"
 dependencies = [
  "darling 0.23.0",
  "proc-macro2",
diff --git a/vendor/openai-codex/codex-rs/Cargo.toml b/vendor/openai-codex/codex-rs/Cargo.toml
index 1808715c..71e939a6 100644
--- a/vendor/openai-codex/codex-rs/Cargo.toml
+++ b/vendor/openai-codex/codex-rs/Cargo.toml
@@ -339,7 +339,7 @@ rcgen = { version = "0.14.7", default-features = false, features = [
 regex = "1.12.3"
 regex-lite = "0.1.8"
 reqwest = { version = "0.12", features = ["cookies"] }
-rmcp = { version = "0.15.0", default-features = false }
+rmcp = { version = "1.4.0", default-features = false }
 runfiles = { git = "https://github.com/dzbarsky/rules_rust", rev = "b56cbaa8465e74127f1ea216f813cd377295ad81" }
 rustls = { version = "0.23", default-features = false, features = [
     "ring",