diff --git a/account_test.go b/account_test.go
index 8434f5b..1d93a65 100644
--- a/account_test.go
+++ b/account_test.go
@@ -8,6 +8,7 @@ import (
 )
 
 func TestAccount(t *testing.T) {
+	t.Parallel()
 	{
 		ts := &TestSuite{}
 
diff --git a/api_test.go b/api_test.go
index 1bb23af..65518f8 100644
--- a/api_test.go
+++ b/api_test.go
@@ -10,6 +10,7 @@ import (
 )
 
 func TestAPI(t *testing.T) {
+	t.Parallel()
 	{
 		// Registration as existing player not allowed
 		ts := &TestSuite{}
diff --git a/auth_test.go b/auth_test.go
index ec646a0..b4bd655 100644
--- a/auth_test.go
+++ b/auth_test.go
@@ -8,6 +8,7 @@ import (
 )
 
 func TestAuth(t *testing.T) {
+	t.Parallel()
 	{
 		ts := &TestSuite{}
 
diff --git a/authlib_injector_test.go b/authlib_injector_test.go
index d97bea5..7eb770f 100644
--- a/authlib_injector_test.go
+++ b/authlib_injector_test.go
@@ -12,6 +12,7 @@ const FALLBACK_SKIN_DOMAIN_A = "a.example.com"
 const FALLBACK_SKIN_DOMAIN_B = "b.example.com"
 
 func TestAuthlibInjector(t *testing.T) {
+	t.Parallel()
 	// Just check that AuthlibInjectorRoot works.
 	// authlib-injector also expects a X-Authlib-Injector-API-Location header
 	// on the authserver and sessionserver routes that it uses; those are
diff --git a/config_test.go b/config_test.go
index 4be8955..a5f85a6 100644
--- a/config_test.go
+++ b/config_test.go
@@ -15,6 +15,7 @@ func configTestConfig(stateDirectory string) *Config {
 }
 
 func TestConfig(t *testing.T) {
+	t.Parallel()
 	sd := Unwrap(os.MkdirTemp("", "tmp"))
 	defer os.RemoveAll(sd)
 
diff --git a/front_test.go b/front_test.go
index 62821ae..7e2194e 100644
--- a/front_test.go
+++ b/front_test.go
@@ -132,6 +132,7 @@ func (ts *TestSuite) loginShouldFail(t *testing.T, rec *httptest.ResponseRecorde
 }
 
 func TestFront(t *testing.T) {
+	t.Parallel()
 	{
 		// Registration as existing player not allowed
 		ts := &TestSuite{}
diff --git a/services_test.go b/services_test.go
index 50e5576..f8cde48 100644
--- a/services_test.go
+++ b/services_test.go
@@ -18,6 +18,7 @@ import (
 const SERVICES_EXISTING_USERNAME = "ExistingUser"
 
 func TestServices(t *testing.T) {
+	t.Parallel()
 	{
 		ts := &TestSuite{}
 
diff --git a/session_test.go b/session_test.go
index 911608c..36fe105 100644
--- a/session_test.go
+++ b/session_test.go
@@ -8,6 +8,7 @@ import (
 )
 
 func TestSession(t *testing.T) {
+	t.Parallel()
 	{
 		ts := &TestSuite{}