diff --git a/lib/addons/hmr.js b/lib/addons/hmr.js
index 339e90d57..f2298cf11 100644
--- a/lib/addons/hmr.js
+++ b/lib/addons/hmr.js
@@ -9,5 +9,6 @@ export default class extends Addon {
 config.devServer = config.devServer || {}
 config.devServer.hot = true
 `;
+		ctx.runTimes = 1;
 	}
 }
diff --git a/lib/scenarios/build-plugin.js b/lib/scenarios/build-plugin.js
index 8d013e744..8ec879100 100644
--- a/lib/scenarios/build-plugin.js
+++ b/lib/scenarios/build-plugin.js
@@ -1,5 +1,5 @@
 const WARMUP_BUILDS = 10;
-const TOTAL_BUILDS = 20;
+const TOTAL_BUILDS = 100;
 
 function checkIsLazyCompilation(options) {
 	if (options.lazyCompilation) {