diff --git a/mise.toml b/mise.toml
index b5321749..e6504b0e 100644
--- a/mise.toml
+++ b/mise.toml
@@ -44,4 +44,9 @@ litestream = 'latest'
 includes = ["scripts"]
 
 [tasks.test]
-depends = ["dev:partitioned-test 1", "dev:partitioned-test 2"]
+depends = [
+  "dev:partitioned-test 1",
+  "dev:partitioned-test 2",
+  "dev:partitioned-test 3",
+  "dev:partitioned-test 4",
+]
diff --git a/scripts/dev/partitioned-test b/scripts/dev/partitioned-test
index 55b13b49..602d8e2b 100755
--- a/scripts/dev/partitioned-test
+++ b/scripts/dev/partitioned-test
@@ -10,4 +10,4 @@ source "$(git rev-parse --show-toplevel)/scripts/_helpers.sh"
 ensure_working_directory!
 
 # shellcheck disable=SC2154
-MIX_TEST_PARTITION="${usage_partition_number}" mix test --partitions 2
+MIX_TEST_PARTITION="${usage_partition_number}" mix test --partitions 4