diff --git a/migra-cli/src/commands/list.rs b/migra-cli/src/commands/list.rs
index 3118e2d..a5f6473 100644
--- a/migra-cli/src/commands/list.rs
+++ b/migra-cli/src/commands/list.rs
@@ -7,7 +7,7 @@ const EM_DASH: char = '—';
 pub(crate) fn print_migration_lists(config: Config) -> StdResult<()> {
     let applied_migrations = match config.database_connection_string() {
         Ok(ref database_connection_string) => {
-            let mut connection = DatabaseConnection::connect(database_connection_string)?;
+            let mut connection = DatabaseConnection::open(database_connection_string)?;
             let applied_migrations = connection.applied_migration_names()?;
 
             println!("Applied migrations:");
diff --git a/migra-cli/src/commands/upgrade.rs b/migra-cli/src/commands/upgrade.rs
index 17d69f3..af27881 100644
--- a/migra-cli/src/commands/upgrade.rs
+++ b/migra-cli/src/commands/upgrade.rs
@@ -1,14 +1,13 @@
-use crate::database;
+use crate::database::DatabaseConnection;
 use crate::migration::Migration;
 use crate::Config;
 use crate::StdResult;
+use std::convert::TryFrom;
 
 pub(crate) fn upgrade_pending_migrations(config: Config) -> StdResult<()> {
-    let database_connection_string = &config.database_connection_string()?;
-    let mut client = database::connect(database_connection_string)?;
-
-    let applied_migration_names = database::applied_migration_names(&mut client)?;
+    let mut connection = DatabaseConnection::try_from(&config)?;
 
+    let applied_migration_names = connection.applied_migration_names()?;
     let migrations = config.migrations()?;
 
     if is_up_to_date_migrations(&migrations, &applied_migration_names) {
@@ -18,7 +17,7 @@ pub(crate) fn upgrade_pending_migrations(config: Config) -> StdResult<()> {
 
         for migration in pending_migrations.iter() {
             println!("upgrade {}...", migration.name());
-            migration.upgrade(&mut client)?;
+            migration.upgrade(&mut connection)?;
         }
     }
 
diff --git a/migra-cli/src/database.rs b/migra-cli/src/database.rs
index 69feaa6..7c98e16 100644
--- a/migra-cli/src/database.rs
+++ b/migra-cli/src/database.rs
@@ -11,12 +11,12 @@ impl TryFrom<&Config> for DatabaseConnection {
     type Error = Box<dyn std::error::Error>;
 
     fn try_from(config: &Config) -> Result<Self, Self::Error> {
-        DatabaseConnection::connect(&config.database_connection_string()?)
+        DatabaseConnection::open(&config.database_connection_string()?)
     }
 }
 
 impl DatabaseConnection {
-    pub fn connect(connection_string: &str) -> StdResult<DatabaseConnection> {
+    pub fn open(connection_string: &str) -> StdResult<DatabaseConnection> {
         let client = Client::connect(connection_string, NoTls)?;
         Ok(DatabaseConnection { client })
     }