diff --git a/CHANGELOG.md b/CHANGELOG.md
index 11a1ab05..0f2871b9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -212,6 +212,18 @@ assert_eq!(
     ColumnType::TimestampWithTimeZone.def().default(Expr::current_timestamp())
 );
 ```
+* Introduced new `ConnAcquireErr` https://github.com/SeaQL/sea-orm/pull/1737
+```rust
+enum DbErr {
+    ConnectionAcquire(ConnAcquireErr),
+    ..
+}
+
+enum ConnAcquireErr {
+    Timeout,
+    ConnectionClosed,
+}
+```
 
 #### Seaography
 
@@ -328,7 +340,7 @@ assert!(matches!(res, Ok(TryInsertResult::Conflicted)));
 
 ### Bug Fixes
 
-* `DeriveActiveEnum` no longer impl `Display`
+* `DeriveActiveEnum` no longer impl `Display` https://github.com/SeaQL/sea-orm/pull/1726
 * Fixed `DeriveActiveEnum` throwing errors because `string_value` consists non-UAX#31 compliant characters https://github.com/SeaQL/sea-orm/pull/1374
 
 For example,
@@ -453,6 +465,7 @@ pub enum Tea {
     EverydayTea,
 }
 ```
+* Definition of `DbErr::ConnectionAcquire` changed to `ConnectionAcquire(ConnAcquireErr)` https://github.com/SeaQL/sea-orm/pull/1737
 
 ## 0.11.3 - 2023-04-24
 
diff --git a/src/error.rs b/src/error.rs
index a63ac708..cbeda702 100644
--- a/src/error.rs
+++ b/src/error.rs
@@ -78,11 +78,11 @@ pub enum DbErr {
 /// Connection error
 #[derive(Error, Debug, PartialEq, Eq)]
 pub enum ConnAcquireErr {
-    /// Connection Timed Out
-    #[error("Connection Timed out")]
+    /// Connection pool timed out
+    #[error("Connection pool timed out")]
     Timeout,
-    /// Unavailable connection
-    #[error("Connection closed by host")]
+    /// Connection closed
+    #[error("Connection closed")]
     ConnectionClosed,
 }