diff --git a/src/providers/codex/mod.rs b/src/providers/codex/mod.rs
index c09f9302..691b8967 100644
--- a/src/providers/codex/mod.rs
+++ b/src/providers/codex/mod.rs
@@ -2527,7 +2527,7 @@ mod tests {
             .await
         });
 
-        tokio::time::timeout(std::time::Duration::from_secs(2), replacement_accepted_rx)
+        tokio::time::timeout(std::time::Duration::from_secs(5), replacement_accepted_rx)
             .await
             .expect("replacement startup did not reach the blocked handshake")
             .expect("replacement startup acknowledgement sender dropped");