diff --git a/database.go b/database.go
index b9ff63d..f7497eb 100644
--- a/database.go
+++ b/database.go
@@ -2,6 +2,8 @@ package main
 
 import (
 	"database/sql"
+
+	_ "github.com/go-sql-driver/mysql"
 )
 
 func dbConnect(username string, password string, address string, port string, database string) *sql.DB {
diff --git a/go.mod b/go.mod
index 65e558b..01bdd7b 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,5 @@
 module xoy.dev/ctdo
 
 go 1.19
+
+require github.com/go-sql-driver/mysql v1.7.0 // indirect
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..7109e4c
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/go-sql-driver/mysql v1.7.0 h1:ueSltNNllEqE3qcWBTD0iQd3IpL/6U+mJxLkazJ7YPc=
+github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=