diff --git a/package.json b/package.json
index be8f597a..a21c46b0 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,7 @@
     "test-browser": "run-p --race run-mastodon build-and-start test-mastodon",
     "test-mastodon": "run-s wait-for-mastodon-to-start wait-for-mastodon-data testcafe",
     "testcafe": "run-s testcafe-suite0 testcafe-suite1",
-    "testcafe-suite0": "cross-env-shell testcafe -c 2 $BROWSER tests/spec/0*",
+    "testcafe-suite0": "cross-env-shell testcafe $BROWSER tests/spec/0*",
     "testcafe-suite1": "cross-env-shell testcafe $BROWSER tests/spec/1*",
     "test-unit": "NODE_ENV=test mocha -r esm -r bin/browser-shim.js tests/unit/",
     "test-in-ci": "cross-env BROWSER=chrome:headless run-p --race run-mastodon start test-mastodon",