diff --git a/crates/cdk-sql-common/src/mint/auth/migrations.rs b/crates/cdk-sql-common/src/mint/auth/migrations.rs
index a285e48a..ee53d6bd 100644
--- a/crates/cdk-sql-common/src/mint/auth/migrations.rs
+++ b/crates/cdk-sql-common/src/mint/auth/migrations.rs
@@ -2,6 +2,8 @@
 /// Auto-generated by build.rs
 pub static MIGRATIONS: &[(&str, &str, &str)] = &[
     ("postgres", "1_init.sql", include_str!(r#"./migrations/postgres/1_init.sql"#)),
+    ("postgres", "20250822104351_rename_blind_message_y_to_b.sql", include_str!(r#"./migrations/postgres/20250822104351_rename_blind_message_y_to_b.sql"#)),
     ("sqlite", "1_fix_sqlx_migration.sql", include_str!(r#"./migrations/sqlite/1_fix_sqlx_migration.sql"#)),
     ("sqlite", "20250109143347_init.sql", include_str!(r#"./migrations/sqlite/20250109143347_init.sql"#)),
+    ("sqlite", "20250822104351_rename_blind_message_y_to_b.sql", include_str!(r#"./migrations/sqlite/20250822104351_rename_blind_message_y_to_b.sql"#)),
 ];
diff --git a/crates/cdk-sql-common/src/mint/auth/migrations/postgres/20250822104351_rename_blind_message_y_to_b.sql b/crates/cdk-sql-common/src/mint/auth/migrations/postgres/20250822104351_rename_blind_message_y_to_b.sql
new file mode 100644
index 00000000..b3a45f05
--- /dev/null
+++ b/crates/cdk-sql-common/src/mint/auth/migrations/postgres/20250822104351_rename_blind_message_y_to_b.sql
@@ -0,0 +1,2 @@
+-- Rename column y to b
+ALTER TABLE blind_signature RENAME COLUMN y TO blinded_message;
\ No newline at end of file
diff --git a/crates/cdk-sql-common/src/mint/auth/migrations/sqlite/20250822104351_rename_blind_message_y_to_b.sql b/crates/cdk-sql-common/src/mint/auth/migrations/sqlite/20250822104351_rename_blind_message_y_to_b.sql
new file mode 100644
index 00000000..b3a45f05
--- /dev/null
+++ b/crates/cdk-sql-common/src/mint/auth/migrations/sqlite/20250822104351_rename_blind_message_y_to_b.sql
@@ -0,0 +1,2 @@
+-- Rename column y to b
+ALTER TABLE blind_signature RENAME COLUMN y TO blinded_message;
\ No newline at end of file
diff --git a/crates/cdk-sql-common/src/mint/auth/mod.rs b/crates/cdk-sql-common/src/mint/auth/mod.rs
index 60f4f4ba..8effd9fc 100644
--- a/crates/cdk-sql-common/src/mint/auth/mod.rs
+++ b/crates/cdk-sql-common/src/mint/auth/mod.rs
@@ -174,12 +174,12 @@ where
                 r#"
                        INSERT
                        INTO blind_signature
-                       (y, amount, keyset_id, c)
+                       (blinded_message, amount, keyset_id, c)
                        VALUES
-                       (:y, :amount, :keyset_id, :c)
+                       (:blinded_message, :amount, :keyset_id, :c)
                    "#,
             )?
-            .bind("y", message.to_bytes().to_vec())
+            .bind("blinded_message", message.to_bytes().to_vec())
             .bind("amount", u64::from(signature.amount) as i64)
             .bind("keyset_id", signature.keyset_id.to_string())
             .bind("c", signature.c.to_bytes().to_vec())
@@ -353,17 +353,17 @@ where
                 c,
                 dleq_e,
                 dleq_s,
-                y
+                blinded_message,
             FROM
                 blind_signature
-            WHERE y IN (:y)
+            WHERE blinded_message IN (:blinded_message)
             "#,
         )?
         .bind_vec(
-            "y",
+            "blinded_message",
             blinded_messages
                 .iter()
-                .map(|y| y.to_bytes().to_vec())
+                .map(|bm| bm.to_bytes().to_vec())
                 .collect(),
         )
         .fetch_all(&*conn)
@@ -382,7 +382,7 @@ where
         .collect::<Result<HashMap<_, _>, Error>>()?;
         Ok(blinded_messages
             .iter()
-            .map(|y| blinded_signatures.remove(y))
+            .map(|bm| blinded_signatures.remove(bm))
             .collect())
     }