diff --git a/global-api/migrations/versions/c360f7e67f44_fix_column_type_activity_emissions.py b/global-api/migrations/versions/c360f7e67f44_fix_column_type_activity_emissions.py
index 69da3f420..78c0d84d9 100644
--- a/global-api/migrations/versions/c360f7e67f44_fix_column_type_activity_emissions.py
+++ b/global-api/migrations/versions/c360f7e67f44_fix_column_type_activity_emissions.py
@@ -21,16 +21,19 @@
 def upgrade() -> None:
     op.alter_column('country_code', 'activity_value',
                     existing_type=sa.String(),
-                    type_=sa.Float)
+                    type_=sa.Float(),
+                    postgresql_using='activity_value::double precision')
     op.alter_column('country_code', 'emissions_value',
                     existing_type=sa.String(),
-                    type_=sa.Float)
-
+                    type_=sa.Float(),
+                    postgresql_using='emissions_value::double precision')
 
 def downgrade() -> None:
     op.alter_column('country_code', 'activity_value',
-                    existing_type=sa.Float,
-                    type_=sa.String())
+                    existing_type=sa.Float(),
+                    type_=sa.String(),
+                    postgresql_using='activity_value::text')
     op.alter_column('country_code', 'emissions_value',
-                    existing_type=sa.Float,
-                    type_=sa.String())
+                    existing_type=sa.Float(),
+                    type_=sa.String(),
+                    postgresql_using='emissions_value::text')