diff --git a/activities-cancellation-heartbeating/src/activities.ts b/activities-cancellation-heartbeating/src/activities.ts
index 956b11b7..7134a453 100644
--- a/activities-cancellation-heartbeating/src/activities.ts
+++ b/activities-cancellation-heartbeating/src/activities.ts
@@ -7,11 +7,12 @@ export async function fakeProgress(sleepIntervalMs = 1000): Promise<void> {
     const startingPoint = activityInfo().heartbeatDetails || 1;
     log.info('Starting activity at progress', { startingPoint });
     for (let progress = startingPoint; progress <= 100; ++progress) {
+      // heartbeat immediately after entering loop to retry activity from last failed progress
+      heartbeat(progress);
       // simple utility to sleep in activity for given interval or throw if Activity is cancelled
       // don't confuse with Workflow.sleep which is only used in Workflow functions!
       log.info('Progress', { progress });
       await sleep(sleepIntervalMs);
-      heartbeat(progress);
     }
   } catch (err) {
     if (err instanceof CancelledFailure) {