diff --git a/src/sinks/gcp/stackdriver_metrics.rs b/src/sinks/gcp/stackdriver_metrics.rs
index 7f3ebbb397a05..f6c66735ddb71 100644
--- a/src/sinks/gcp/stackdriver_metrics.rs
+++ b/src/sinks/gcp/stackdriver_metrics.rs
@@ -108,6 +108,7 @@ impl SinkConfig for StackdriverConfig {
         let client = HttpClient::new(tls_settings, cx.proxy())?;
         let batch_settings = self.batch.into_batch_settings()?;
 
+        auth.spawn_regenerate_token();
         let sink = HttpEventSink {
             config: self.clone(),
             started,