diff --git a/run-tests.sh b/run-tests.sh
index 0c6dbc5..71ed1a8 100755
--- a/run-tests.sh
+++ b/run-tests.sh
@@ -1,3 +1,3 @@
 #!/usr/bin/env sh
 set -x
-stack test --flag reanimate:test --test-arguments="$@" --pedantic
+stack test --flag reanimate:test --test-arguments="--rerun -j 4 $@" --pedantic