diff --git a/moonstreamdb/alembic/versions/295ce155c811_fix_avalanche.py b/moonstreamdb/alembic/versions/295ce155c811_fix_avalanche.py
new file mode 100644
index 00000000..68fb7385
--- /dev/null
+++ b/moonstreamdb/alembic/versions/295ce155c811_fix_avalanche.py
@@ -0,0 +1,34 @@
+"""Fix avalanche
+
+Revision ID: 295ce155c811
+Revises: 26000a6bff7d
+Create Date: 2024-04-01 09:20:46.381074
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '295ce155c811'
+down_revision = '26000a6bff7d'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('avalanche_blocks', 'block_extra_data')
+    op.drop_column('avalanche_fuji_blocks', 'block_extra_data')
+    op.add_column('avalanche_blocks', sa.Column('block_extra_data', sa.Text(), nullable=True))
+    op.add_column('avalanche_fuji_blocks', sa.Column('block_extra_data', sa.Text(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('avalanche_blocks', 'block_extra_data')
+    op.drop_column('avalanche_fuji_blocks', 'block_extra_data')
+    op.add_column('avalanche_blocks', sa.Column('block_extra_data', sa.VARCHAR(length=256), nullable=True))
+    op.add_column('avalanche_fuji_blocks', sa.Column('block_extra_data', sa.VARCHAR(length=256), nullable=True))
+    # ### end Alembic commands ###
diff --git a/moonstreamdb/moonstreamdb/models.py b/moonstreamdb/moonstreamdb/models.py
index fdf47804..4d31a325 100644
--- a/moonstreamdb/moonstreamdb/models.py
+++ b/moonstreamdb/moonstreamdb/models.py
@@ -1406,7 +1406,7 @@ class AvalancheBlock(Base):  # type: ignore
     )
 
     mix_hash = Column(VARCHAR(256), nullable=True)
-    block_extra_data = Column(VARCHAR(256), nullable=True)
+    block_extra_data = Column(Text, nullable=True)
     block_gas_cost = Column(VARCHAR(256), nullable=True)
     ext_data_gas_used = Column(VARCHAR(256), nullable=True)
     ext_data_hash = Column(VARCHAR(256), nullable=True)
diff --git a/moonstreamdb/moonstreamdb/version.py b/moonstreamdb/moonstreamdb/version.py
index a6e795a6..377aaf31 100644
--- a/moonstreamdb/moonstreamdb/version.py
+++ b/moonstreamdb/moonstreamdb/version.py
@@ -2,4 +2,4 @@
 Moonstream database version.
 """
 
-MOONSTREAMDB_VERSION = "0.3.10"
+MOONSTREAMDB_VERSION = "0.3.11"