diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 428bf71ea..ac4ba8562 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -2,6 +2,11 @@ repos:
   # Elixir config
   - repo: local
     hooks:
+      - id: mix-test
+        name: 'elixir: mix test'
+        entry: mix test
+        language: system
+        files: \.ex*$
       - id: mix-format
         name: 'elixir: mix format'
         entry: mix format --check-formatted
diff --git a/apps/fg_http/test/test_helper.exs b/apps/fg_http/test/test_helper.exs
index ee5a1ae26..ae2a237b9 100644
--- a/apps/fg_http/test/test_helper.exs
+++ b/apps/fg_http/test/test_helper.exs
@@ -1,3 +1,2 @@
-{:ok, _} = Application.ensure_all_started(:ex_machina)
 ExUnit.start()
 Ecto.Adapters.SQL.Sandbox.mode(FgHttp.Repo, :manual)