diff --git a/sea-orm-codegen/src/entity/column.rs b/sea-orm-codegen/src/entity/column.rs
index 9a6cf4dce..6a630da66 100644
--- a/sea-orm-codegen/src/entity/column.rs
+++ b/sea-orm-codegen/src/entity/column.rs
@@ -22,6 +22,7 @@ impl Column {
     }
 
     pub fn get_rs_type(&self) -> TokenStream {
+        #[allow(unreachable_patterns)]
         let ident: TokenStream = match self.col_type {
             ColumnType::Char(_)
             | ColumnType::String(_)
diff --git a/src/driver/mock.rs b/src/driver/mock.rs
index 7de6aaaf6..0a1629bf0 100644
--- a/src/driver/mock.rs
+++ b/src/driver/mock.rs
@@ -25,6 +25,7 @@ pub trait MockDatabaseTrait: Send {
 }
 
 impl MockDatabaseConnector {
+    #[allow(unused_variables)]
     pub fn accepts(string: &str) -> bool {
         #[cfg(feature = "sqlx-mysql")]
         if crate::SqlxMySqlConnector::accepts(string) {
@@ -41,6 +42,7 @@ impl MockDatabaseConnector {
         false
     }
 
+    #[allow(unused_variables)]
     pub async fn connect(string: &str) -> Result<DatabaseConnection, DbErr> {
         macro_rules! connect_mock_db {
             ( $syntax: expr ) => {
diff --git a/src/entity/column.rs b/src/entity/column.rs
index e9c3b759e..045a85ba6 100644
--- a/src/entity/column.rs
+++ b/src/entity/column.rs
@@ -290,6 +290,7 @@ impl From<ColumnType> for sea_query::ColumnType {
 
 impl From<sea_query::ColumnType> for ColumnType {
     fn from(col_type: sea_query::ColumnType) -> Self {
+        #[allow(unreachable_patterns)]
         match col_type {
             sea_query::ColumnType::Char(s) => Self::Char(s),
             sea_query::ColumnType::String(s) => Self::String(s),