diff --git a/src/server/wtr-config.js b/src/server/wtr-config.js
index fe33a104..506df218 100644
--- a/src/server/wtr-config.js
+++ b/src/server/wtr-config.js
@@ -187,6 +187,8 @@ export class WTRConfig {
 				files: this.#pattern
 			});
 		} else if (group === 'vdiff') {
+			config.testsFinishTimeout = 5 * 60 * 1000;
+
 			config.reporters ??= [ defaultReporter() ];
 			config.reporters.push(visualDiffReporter({ updateGoldens: golden }));