diff --git a/lib/async.ts b/lib/async.ts
index 3de0ecc3d3aa3e20c3fb875bd528c6fcfb9ae47c..5e2db72f289589763c025c50b773c2565e95750c 100644
--- a/lib/async.ts
+++ b/lib/async.ts
@@ -152,7 +152,7 @@ export class DedupeConcurrent<Args extends unknown[], Ret> {
     if (promise) return promise;
     promise = this.fn(...args);
     this.pending.set(k, promise);
-    void promise.finally(() => void this.pending.delete(k));
+    void promise.finally(() => void this.pending.delete(k)).catch(() => {});
     return promise;
   };
 }
diff --git a/lib/readme.changes.md b/lib/readme.changes.md
index 3c0e85870bd91041a506b18994c479d96c726fb0..38752a0ef130eb0f3d1153c5ed94c38d8c82a753 100644
--- a/lib/readme.changes.md
+++ b/lib/readme.changes.md
@@ -10,6 +10,11 @@
   - finally fixes resize corruptions for long running widgets
 - `string/ansi`: add `inverse`, `resetInverse`, and `cursorHome`.
 
+### fixes
+
+- `async.DedupeConcurrent` no longer causes unhandled rejections with correct
+  caller error handling.
+
 ## v7
 
 ### features
diff --git a/lib/repl.ts b/lib/repl.ts
index 55b50fe3a931ba7037df5eed6acb33bca3f66c11..acd7b71400005870cc7cc3e97d809241647ae89c 100644
--- a/lib/repl.ts
+++ b/lib/repl.ts
@@ -18,8 +18,6 @@
  *       // ...
  *     },
  *   },
- *
- *   // many more options to customize how it displays
  * });
  *
  * import * as repl from "@clo/lib/repl";