diff --git a/backend/app/models/password_reset.py b/backend/app/models/password_reset.py
index 0de1a70..019ce22 100644
--- a/backend/app/models/password_reset.py
+++ b/backend/app/models/password_reset.py
@@ -29,7 +29,7 @@ class PasswordResetToken(Base):
     token_hash: Mapped[str] = mapped_column(String(128), nullable=False)
     auth_version: Mapped[int] = mapped_column(nullable=False, default=0, server_default=text("0"))
     used: Mapped[bool] = mapped_column(
-        Boolean, nullable=False, default=False, server_default=text("0")
+        Boolean, nullable=False, default=False, server_default=text("false")
     )
     expires_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
     created_at: Mapped[datetime] = mapped_column(
diff --git a/backend/app/models/settings.py b/backend/app/models/settings.py
index fd8182b..1f3bc43 100644
--- a/backend/app/models/settings.py
+++ b/backend/app/models/settings.py
@@ -35,7 +35,7 @@ class PlatformSettings(Base):
         String(64), nullable=True
     )
     active: Mapped[bool] = mapped_column(
-        Boolean, nullable=False, default=False, server_default=text("0")
+        Boolean, nullable=False, default=False, server_default=text("false")
     )
     created_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), nullable=False, default=_utc_now, server_default=func.now()
diff --git a/backend/migrations/versions/0008_platform_settings.py b/backend/migrations/versions/0008_platform_settings.py
index 046ee5f..8ece622 100644
--- a/backend/migrations/versions/0008_platform_settings.py
+++ b/backend/migrations/versions/0008_platform_settings.py
@@ -17,7 +17,7 @@ def upgrade() -> None:
         sa.Column("settings", sa.JSON(), nullable=True),
         sa.Column("secret_ref", sa.String(length=512), nullable=True),
         sa.Column("updated_by_user_id", sa.String(length=64), nullable=True),
-        sa.Column("active", sa.Boolean(), server_default=sa.text("0"), nullable=False),
+        sa.Column("active", sa.Boolean(), server_default=sa.text("false"), nullable=False),
         sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         sa.PrimaryKeyConstraint("id"),
         sa.UniqueConstraint("version", name="uq_platform_settings_version"),
diff --git a/backend/migrations/versions/0011_password_reset_tokens.py b/backend/migrations/versions/0011_password_reset_tokens.py
index edb30ce..a1754a8 100644
--- a/backend/migrations/versions/0011_password_reset_tokens.py
+++ b/backend/migrations/versions/0011_password_reset_tokens.py
@@ -16,7 +16,7 @@ def upgrade() -> None:
         sa.Column("user_id", sa.String(length=64), nullable=False),
         sa.Column("token_hash", sa.String(length=128), nullable=False),
         sa.Column("auth_version", sa.Integer(), server_default=sa.text("0"), nullable=False),
-        sa.Column("used", sa.Boolean(), server_default=sa.text("0"), nullable=False),
+        sa.Column("used", sa.Boolean(), server_default=sa.text("false"), nullable=False),
         sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
         sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
         sa.ForeignKeyConstraint(["user_id"], ["users.id"], ondelete="CASCADE"),