diff --git a/src/asyn.rs b/src/asyn.rs
index cd9322b..4ce85f7 100644
--- a/src/asyn.rs
+++ b/src/asyn.rs
@@ -1,5 +1,3 @@
-use crate::error;
-
 /// The pool is one of the main features to be realized in persistence.
 ///
 /// Any implementation (database, file storage, memory or others) must be able to get a connection
diff --git a/src/bb8_postgres.rs b/src/bb8_postgres.rs
index d2460a5..81f8d7a 100644
--- a/src/bb8_postgres.rs
+++ b/src/bb8_postgres.rs
@@ -1,7 +1,6 @@
 #[cfg(feature = "nightly")]
 use crate::asyn::TransactionClient;
 use crate::asyn::{ConnectionClient, PersistencePool};
-use crate::error;
 
 pub use bb8::{Pool, PooledConnection};
 pub use bb8_postgres::tokio_postgres;
diff --git a/src/r2d2_sqlite.rs b/src/r2d2_sqlite.rs
index 42b37c8..85dc7e4 100644
--- a/src/r2d2_sqlite.rs
+++ b/src/r2d2_sqlite.rs
@@ -1,4 +1,3 @@
-use crate::error;
 #[cfg(feature = "nightly")]
 use crate::syn::TransactionClient;
 use crate::syn::{ConnectionClient, PersistencePool};
diff --git a/src/syn.rs b/src/syn.rs
index 0691c8d..07edc3e 100644
--- a/src/syn.rs
+++ b/src/syn.rs
@@ -1,5 +1,3 @@
-use crate::error;
-
 /// The pool is one of the main features to be realized in persistence.
 ///
 /// Any implementation (database, file storage, memory or others) must be able to get a connection