diff --git a/sea-orm-macros/src/derives/primary_key.rs b/sea-orm-macros/src/derives/primary_key.rs
index dec22da8..2dfbcbe4 100644
--- a/sea-orm-macros/src/derives/primary_key.rs
+++ b/sea-orm-macros/src/derives/primary_key.rs
@@ -47,16 +47,18 @@ pub fn expand_derive_primary_key(ident: Ident, data: Data) -> syn::Result<TokenS
 
         impl sea_orm::PrimaryKeyTrait for #ident {}
 
-        impl sea_orm::PrimaryKeyToColumn<Entity> for #ident {
-            fn into_column(self) -> <Entity as EntityTrait>::Column {
+        impl sea_orm::PrimaryKeyToColumn for #ident {
+            type Column = Column;
+
+            fn into_column(self) -> Self::Column {
                 match self {
-                    #(Self::#variant => Column::#variant,)*
+                    #(Self::#variant => Self::Column::#variant,)*
                 }
             }
 
-            fn from_column(col: <Entity as EntityTrait>::Column) -> Option<Self> {
+            fn from_column(col: Self::Column) -> Option<Self> {
                 match col {
-                    #(Column::#variant => Some(Self::#variant),)*
+                    #(Self::Column::#variant => Some(Self::#variant),)*
                     _ => None,
                 }
             }
diff --git a/src/entity/base.rs b/src/entity/base.rs
index 4b51f7ed..64e28113 100644
--- a/src/entity/base.rs
+++ b/src/entity/base.rs
@@ -20,7 +20,7 @@ pub trait EntityTrait: EntityName {
 
     type Relation: RelationTrait;
 
-    type PrimaryKey: PrimaryKeyTrait + PrimaryKeyToColumn<Self>;
+    type PrimaryKey: PrimaryKeyTrait + PrimaryKeyToColumn<Column = Self::Column>;
 
     fn has_one<R>(entity: R) -> RelationBuilder<Self, R>
     where
@@ -78,7 +78,6 @@ pub trait EntityTrait: EntityName {
     fn find_by<V>(values: V) -> Select<Self>
     where
         V: IntoValueTuple,
-        Self::PrimaryKey: PrimaryKeyToColumn<Self>,
     {
         let mut select = Self::find();
         let mut keys = Self::PrimaryKey::iter();
diff --git a/src/entity/primary_key.rs b/src/entity/primary_key.rs
index 7f004b40..5fa3658d 100644
--- a/src/entity/primary_key.rs
+++ b/src/entity/primary_key.rs
@@ -1,12 +1,13 @@
-use super::{EntityTrait, IdenStatic, Iterable};
+use super::{ColumnTrait, IdenStatic, Iterable};
 
 pub trait PrimaryKeyTrait: IdenStatic + Iterable {}
 
-pub trait PrimaryKeyToColumn<E>
-where
-    E: EntityTrait,
-{
-    fn into_column(self) -> E::Column;
+pub trait PrimaryKeyToColumn {
+    type Column: ColumnTrait;
 
-    fn from_column(col: E::Column) -> Option<Self> where Self: std::marker::Sized;
+    fn into_column(self) -> Self::Column;
+
+    fn from_column(col: Self::Column) -> Option<Self>
+    where
+        Self: Sized;
 }
diff --git a/src/query/update.rs b/src/query/update.rs
index e9719131..7e40f1c0 100644
--- a/src/query/update.rs
+++ b/src/query/update.rs
@@ -86,18 +86,18 @@ where
 #[cfg(test)]
 mod tests {
     use crate::tests_cfg::{cake, fruit};
-    use crate::{Update, QueryTrait, Val};
+    use crate::{QueryTrait, Update, Val};
     use sea_query::PostgresQueryBuilder;
 
     #[test]
     fn update_1() {
         assert_eq!(
             Update::<cake::ActiveModel>::new(cake::ActiveModel {
-                    id: Val::set(1),
-                    name: Val::set("Apple Pie".to_owned()),
-                })
-                .build(PostgresQueryBuilder)
-                .to_string(),
+                id: Val::set(1),
+                name: Val::set("Apple Pie".to_owned()),
+            })
+            .build(PostgresQueryBuilder)
+            .to_string(),
             r#"UPDATE "cake" SET "name" = 'Apple Pie' WHERE "cake"."id" = 1"#,
         );
     }
@@ -106,12 +106,12 @@ mod tests {
     fn update_2() {
         assert_eq!(
             Update::<fruit::ActiveModel>::new(fruit::ActiveModel {
-                    id: Val::set(1),
-                    name: Val::set("Orange".to_owned()),
-                    cake_id: Val::unset(),
-                })
-                .build(PostgresQueryBuilder)
-                .to_string(),
+                id: Val::set(1),
+                name: Val::set("Orange".to_owned()),
+                cake_id: Val::unset(),
+            })
+            .build(PostgresQueryBuilder)
+            .to_string(),
             r#"UPDATE "fruit" SET "name" = 'Orange' WHERE "fruit"."id" = 1"#,
         );
     }
@@ -120,13 +120,13 @@ mod tests {
     fn update_3() {
         assert_eq!(
             Update::<fruit::ActiveModel>::new(fruit::ActiveModel {
-                    id: Val::set(2),
-                    name: Val::unset(),
-                    cake_id: Val::set(Some(3)),
-                })
-                .build(PostgresQueryBuilder)
-                .to_string(),
+                id: Val::set(2),
+                name: Val::unset(),
+                cake_id: Val::set(Some(3)),
+            })
+            .build(PostgresQueryBuilder)
+            .to_string(),
             r#"UPDATE "fruit" SET "cake_id" = 3 WHERE "fruit"."id" = 2"#,
         );
     }
-}
\ No newline at end of file
+}