diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 65fc796..1cd0d50 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -4,13 +4,14 @@ stages:
 
 test:
   stage: test
+
   image: golang:1.18
   only:
     refs:
       - main
       - merge_requests
   script:
-    - go test ./...
+    - go test -race ./...
 
 push:
   stage: push
diff --git a/cmd/mothd/httpd_test.go b/cmd/mothd/httpd_test.go
index f5482d2..b56f56c 100644
--- a/cmd/mothd/httpd_test.go
+++ b/cmd/mothd/httpd_test.go
@@ -7,7 +7,6 @@ import (
 	"net/http/httptest"
 	"net/url"
 	"testing"
-	"time"
 
 	"github.com/spf13/afero"
 )
@@ -34,8 +33,7 @@ func (hs *HTTPServer) TestRequest(path string, args map[string]string) *httptest
 
 func TestHttpd(t *testing.T) {
 	server := NewTestServer()
-	hs := NewHTTPServer("/", server)
-	stateProvider := server.State.(*State)
+	hs := NewHTTPServer("/", server.MothServer)
 
 	if r := hs.TestRequest("/", nil); r.Result().StatusCode != 200 {
 		t.Error(r.Result())
@@ -72,7 +70,7 @@ func TestHttpd(t *testing.T) {
 		t.Error("Register failed", r.Body.String())
 	}
 
-	time.Sleep(TestMaintenanceInterval)
+	server.refresh()
 
 	if r := hs.TestRequest("/state", nil); r.Result().StatusCode != 200 {
 		t.Error(r.Result())
@@ -114,8 +112,7 @@ func TestHttpd(t *testing.T) {
 		t.Error("Unexpected body", r.Body.String())
 	}
 
-	time.Sleep(TestMaintenanceInterval)
-	stateProvider.refresh()
+	server.refresh()
 
 	if r := hs.TestRequest("/content/pategory/2/puzzle.json", nil); r.Result().StatusCode != 200 {
 		t.Error(r.Result())
@@ -127,7 +124,7 @@ func TestHttpd(t *testing.T) {
 	} else if err := json.Unmarshal(r.Body.Bytes(), &state); err != nil {
 		t.Error(err)
 	} else if len(state.PointsLog) != 1 {
-		t.Error("Points log wrong length")
+		t.Errorf("Points log wrong length. Wanted 1, got %v (length %d)", state.PointsLog, len(state.PointsLog))
 	} else if len(state.Puzzles["pategory"]) != 2 {
 		t.Error("Didn't unlock next puzzle")
 	}
@@ -143,7 +140,7 @@ func TestDevelMemHttpd(t *testing.T) {
 	srv := NewTestServer()
 
 	{
-		hs := NewHTTPServer("/", srv)
+		hs := NewHTTPServer("/", srv.MothServer)
 
 		if r := hs.TestRequest("/mothballer/pategory.md", nil); r.Result().StatusCode != 404 {
 			t.Error("Should have gotten a 404 for mothballer in prod mode")
@@ -152,7 +149,7 @@ func TestDevelMemHttpd(t *testing.T) {
 
 	{
 		srv.Config.Devel = true
-		hs := NewHTTPServer("/", srv)
+		hs := NewHTTPServer("/", srv.MothServer)
 
 		if r := hs.TestRequest("/mothballer/pategory.md", nil); r.Result().StatusCode != 500 {
 			t.Log(r.Body.String())
diff --git a/cmd/mothd/server.go b/cmd/mothd/server.go
index f53ecdf..0c5de3f 100644
--- a/cmd/mothd/server.go
+++ b/cmd/mothd/server.go
@@ -68,6 +68,9 @@ type Maintainer interface {
 	// It will only be called once, when execution begins.
 	// It's okay to just exit if there's no maintenance to be done.
 	Maintain(updateInterval time.Duration)
+
+	// refresh is a shortcut used internally for testing
+	refresh()
 }
 
 // MothServer gathers together the providers that make up a MOTH server.
diff --git a/cmd/mothd/server_test.go b/cmd/mothd/server_test.go
index ab4f986..caaf61a 100644
--- a/cmd/mothd/server_test.go
+++ b/cmd/mothd/server_test.go
@@ -3,30 +3,40 @@ package main
 import (
 	"io/ioutil"
 	"testing"
-	"time"
 
 	"github.com/spf13/afero"
 )
 
-const TestMaintenanceInterval = time.Millisecond * 1
 const TestTeamID = "teamID"
 
-func NewTestServer() *MothServer {
+type TestServer struct {
+	*MothServer
+}
+
+// NewTestServer creates a new MothServer with NewTestMothballs and some initial state.
+//
+// See function definition for details.
+func NewTestServer() TestServer {
 	puzzles := NewTestMothballs()
 	puzzles.refresh()
-	go puzzles.Maintain(TestMaintenanceInterval)
 
 	state := NewTestState()
 	afero.WriteFile(state, "teamids.txt", []byte("teamID\n"), 0644)
 	afero.WriteFile(state, "messages.html", []byte("messages.html"), 0644)
 	state.refresh()
-	go state.Maintain(TestMaintenanceInterval)
 
 	theme := NewTestTheme()
 	afero.WriteFile(theme.Fs, "/index.html", []byte("index.html"), 0644)
-	go theme.Maintain(TestMaintenanceInterval)
 
-	return NewMothServer(Configuration{}, theme, state, puzzles)
+	return TestServer{NewMothServer(Configuration{}, theme, state, puzzles)}
+}
+
+func (ts TestServer) refresh() {
+	ts.State.(*State).refresh()
+	for _, pp := range ts.PuzzleProviders {
+		pp.(*Mothballs).refresh()
+	}
+	ts.Theme.(*Theme).refresh()
 }
 
 func TestDevelServer(t *testing.T) {
@@ -82,8 +92,7 @@ func TestProdServer(t *testing.T) {
 		t.Error("index.html wrong contents", contents)
 	}
 
-	// Wait for refresh to pick everything up
-	time.Sleep(TestMaintenanceInterval)
+	server.refresh()
 
 	{
 		es := handler.ExportState()
@@ -136,7 +145,7 @@ func TestProdServer(t *testing.T) {
 		t.Error("Right answer marked wrong", err)
 	}
 
-	time.Sleep(TestMaintenanceInterval)
+	server.refresh()
 
 	{
 		es := handler.ExportState()
@@ -165,7 +174,7 @@ func TestProdServer(t *testing.T) {
 		t.Error("Right answer marked wrong:", err)
 	}
 
-	time.Sleep(TestMaintenanceInterval)
+	server.refresh()
 
 	{
 		es := anonHandler.ExportState()
diff --git a/cmd/mothd/theme.go b/cmd/mothd/theme.go
index a70ca32..2b9b0ff 100644
--- a/cmd/mothd/theme.go
+++ b/cmd/mothd/theme.go
@@ -38,3 +38,7 @@ func (t *Theme) Open(name string) (ReadSeekCloser, time.Time, error) {
 func (t *Theme) Maintain(i time.Duration) {
 	// No periodic tasks for a theme
 }
+
+func (t *Theme) refresh() {
+	// Nothing to do for a theme
+}
diff --git a/cmd/mothd/transpiler.go b/cmd/mothd/transpiler.go
index 7103b20..ddeb3da 100644
--- a/cmd/mothd/transpiler.go
+++ b/cmd/mothd/transpiler.go
@@ -79,3 +79,7 @@ func (p TranspilerProvider) Mothball(cat string, w io.Writer) error {
 func (p TranspilerProvider) Maintain(updateInterval time.Duration) {
 	// Nothing to do here.
 }
+
+func (p TranspilerProvider) refresh() {
+	// Nothing to do for a theme
+}