diff --git a/crates/harness/src/cursor/mod.rs b/crates/harness/src/cursor/mod.rs
index 01c5d4ed19..62b9b54319 100644
--- a/crates/harness/src/cursor/mod.rs
+++ b/crates/harness/src/cursor/mod.rs
@@ -57,7 +57,7 @@ use crate::{Harness, HarnessError, RunControls, Signal, send_signal, shutdown_ch
 
 /// The pinned SDK (public beta 1.0.x line; inspected against 1.0.31's
 /// typings). Bump deliberately — see the module header.
-const CURSOR_SDK_PIN: &str = "@cursor/sdk@1.0.32";
+const CURSOR_SDK_PIN: &str = "@cursor/sdk@1.2.0";
 const SHIM_NAME: &str = "zeron-cursor-shim.mjs";
 const SHIM_SOURCE: &str = include_str!("shim.mjs");
 /// A stopped turn normally settles `cancelled` at once. The SDK's cancel can