diff --git a/sql/14-increase_owner_pubkey.sql b/sql/14-increase_owner_pubkey.sql
new file mode 100644
index 000000000..0b81e2542
--- /dev/null
+++ b/sql/14-increase_owner_pubkey.sql
@@ -0,0 +1,12 @@
+--
+-- Increase the char limit of owner_public_key from 256 to 512.
+--
+
+-- pew-pew
+\connect blobber_meta;
+
+-- in a transaction
+BEGIN;
+    ALTER TABLE allocations
+        ALTER COLUMN owner_public_key TYPE varchar(512);
+COMMIT;