diff --git a/models/models.go b/models/models.go
index 0123eab12db97..2446fb6fd1190 100644
--- a/models/models.go
+++ b/models/models.go
@@ -257,7 +257,16 @@ func getEngine() (*xorm.Engine, error) {
 		return nil, fmt.Errorf("Unknown database type: %s", DbCfg.Type)
 	}
 
-	return xorm.NewEngine(DbCfg.Type, connStr)
+	engine, err := xorm.NewEngine(DbCfg.Type, connStr)
+	if err != nil {
+		return nil, err
+	}
+
+	if DbCfg.Type == "sqlite3" {
+		engine.SetMaxOpenConns(1)
+	}
+
+	return engine, nil
 }
 
 // NewTestEngine sets a new test xorm.Engine
diff --git a/models/unit_tests.go b/models/unit_tests.go
index 28cd91215edc0..3933772e61b60 100644
--- a/models/unit_tests.go
+++ b/models/unit_tests.go
@@ -80,6 +80,7 @@ func createTestEngine(fixturesDir string) error {
 	if err != nil {
 		return err
 	}
+	x.SetMaxOpenConns(1)
 	x.SetMapper(core.GonicMapper{})
 	if err = x.StoreEngine("InnoDB").Sync2(tables...); err != nil {
 		return err