diff --git a/migrations/000.138.sql b/migrations/000.138.sql
new file mode 100644
index 0000000..af3dde7
--- /dev/null
+++ b/migrations/000.138.sql
@@ -0,0 +1,12 @@
+-- P5-4270: make state a freetext field
+
+ALTER TABLE addresses
+    ADD COLUMN state varchar;
+
+UPDATE addresses
+    SET state = (SELECT name FROM states WHERE code = addresses.state_code);
+
+ALTER TABLE addresses
+  DROP COLUMN state_code;
+
+DROP TABLE states;