diff --git a/postgres-types/Cargo.toml b/postgres-types/Cargo.toml
index 83ff718a..d8464186 100644
--- a/postgres-types/Cargo.toml
+++ b/postgres-types/Cargo.toml
@@ -49,4 +49,4 @@ uuid-1 = { version = "1.0", package = "uuid", optional = true }
 time-02 = { version = "0.2", package = "time", optional = true }
 time-03 = { version = "0.3", package = "time", default-features = false, optional = true }
 
-smol_str = { version = "0.1.23", default-features = false, optional = true }
+smol_str-01 = { version = "0.1.23", package = "smol_str", default-features = false, optional = true }
diff --git a/postgres-types/src/lib.rs b/postgres-types/src/lib.rs
index 3933f34c..c06a2fb4 100644
--- a/postgres-types/src/lib.rs
+++ b/postgres-types/src/lib.rs
@@ -155,7 +155,6 @@ pub use pg_lsn::PgLsn;
 
 pub use crate::special::{Date, Timestamp};
 use bytes::BytesMut;
-use smol_str::SmolStr;
 
 // Number of seconds from 1970-01-01 to 2000-01-01
 const TIME_SEC_CONVERSION: u64 = 946_684_800;
@@ -233,6 +232,8 @@ mod time_03;
 mod uuid_08;
 #[cfg(feature = "with-uuid-1")]
 mod uuid_1;
+#[cfg(feature = "smol_str-01")]
+mod smol_str_01;
 
 // The time::{date, time} macros produce compile errors if the crate package is renamed.
 #[cfg(feature = "with-time-0_2")]
@@ -444,6 +445,9 @@ impl WrongType {
 /// | `eui48::MacAddress`             | MACADDR                             |
 /// | `cidr::InetCidr`                | CIDR                                |
 /// | `cidr::InetAddr`                | INET                                |
+/// | `smol_str::SmolStr`             | VARCHAR, CHAR(n), TEXT, CITEXT,     |
+/// |                                 | NAME, UNKNOWN, LTREE, LQUERY,       |
+/// |                                 | LTXTQUERY                           |
 ///
 /// # Nullability
 ///
@@ -630,18 +634,6 @@ impl<'a> FromSql<'a> for Box<str> {
     }
 }
 
-#[cfg(feature = "smol_str")]
-impl<'a> FromSql<'a> for smol_str::SmolStr {
-    fn from_sql(ty: &Type, raw: &'a [u8]) -> Result<SmolStr, Box<dyn Error + Sync + Send>> {
-        <&str as FromSql>::from_sql(ty, raw)
-            .map(SmolStr::from)
-    }
-
-    fn accepts(ty: &Type) -> bool {
-        <&str as FromSql>::accepts(ty)
-    }
-}
-
 impl<'a> FromSql<'a> for &'a str {
     fn from_sql(ty: &Type, raw: &'a [u8]) -> Result<&'a str, Box<dyn Error + Sync + Send>> {
         match *ty {
@@ -1042,19 +1034,6 @@ impl ToSql for Box<str> {
     to_sql_checked!();
 }
 
-#[cfg(feature = "smol_str")]
-impl ToSql for smol_str::SmolStr {
-    fn to_sql(&self, ty: &Type, w: &mut BytesMut) -> Result<IsNull, Box<dyn Error + Sync + Send>> {
-        <&str as ToSql>::to_sql(&&**self, ty, w)
-    }
-
-    fn accepts(ty: &Type) -> bool {
-        <&str as ToSql>::accepts(ty)
-    }
-
-    to_sql_checked!();
-}
-
 macro_rules! simple_to {
     ($t:ty, $f:ident, $($expected:ident),+) => {
         impl ToSql for $t {
diff --git a/postgres-types/src/smol_str_01.rs b/postgres-types/src/smol_str_01.rs
new file mode 100644
index 00000000..a0d024ce
--- /dev/null
+++ b/postgres-types/src/smol_str_01.rs
@@ -0,0 +1,27 @@
+use bytes::BytesMut;
+use smol_str_01::SmolStr;
+use std::error::Error;
+
+use crate::{FromSql, IsNull, ToSql, Type};
+
+impl<'a> FromSql<'a> for SmolStr {
+    fn from_sql(ty: &Type, raw: &'a [u8]) -> Result<SmolStr, Box<dyn Error + Sync + Send>> {
+        <&str as FromSql>::from_sql(ty, raw).map(SmolStr::from)
+    }
+
+    fn accepts(ty: &Type) -> bool {
+        <&str as FromSql>::accepts(ty)
+    }
+}
+
+impl ToSql for SmolStr {
+    fn to_sql(&self, ty: &Type, w: &mut BytesMut) -> Result<IsNull, Box<dyn Error + Sync + Send>> {
+        <&str as ToSql>::to_sql(&&**self, ty, w)
+    }
+
+    fn accepts(ty: &Type) -> bool {
+        <&str as ToSql>::accepts(ty)
+    }
+
+    to_sql_checked!();
+}