diff --git a/app/models.py b/app/models.py
index 362e5dce..ed172714 100644
--- a/app/models.py
+++ b/app/models.py
@@ -83,7 +83,7 @@ class File(db.Model):
     width = db.Column(db.Integer)
     height = db.Column(db.Integer)
     alt_text = db.Column(db.String(256))
-    source_url = db.Column(db.String(256))
+    source_url = db.Column(db.String(1024))
     thumbnail_path = db.Column(db.String(255))
     thumbnail_width = db.Column(db.Integer)
     thumbnail_height = db.Column(db.Integer)
diff --git a/migrations/versions/62cbf0bf515a_longer_file_source_url.py b/migrations/versions/62cbf0bf515a_longer_file_source_url.py
new file mode 100644
index 00000000..9b97baed
--- /dev/null
+++ b/migrations/versions/62cbf0bf515a_longer_file_source_url.py
@@ -0,0 +1,38 @@
+"""longer file source_url
+
+Revision ID: 62cbf0bf515a
+Revises: d37fe77e043c
+Create Date: 2024-02-13 06:50:03.712804
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '62cbf0bf515a'
+down_revision = 'd37fe77e043c'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('file', schema=None) as batch_op:
+        batch_op.alter_column('source_url',
+               existing_type=sa.VARCHAR(length=256),
+               type_=sa.String(length=1024),
+               existing_nullable=True)
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('file', schema=None) as batch_op:
+        batch_op.alter_column('source_url',
+               existing_type=sa.String(length=1024),
+               type_=sa.VARCHAR(length=256),
+               existing_nullable=True)
+
+    # ### end Alembic commands ###