diff --git a/migrations/postgres/20260413000000_api_clients_fix_refill_rate_type.sql b/migrations/postgres/20260413000000_api_clients_fix_refill_rate_type.sql
new file mode 100644
index 0000000..65dc851
--- /dev/null
+++ b/migrations/postgres/20260413000000_api_clients_fix_refill_rate_type.sql
@@ -0,0 +1 @@
+ALTER TABLE api_clients ALTER COLUMN rate_limit_refill_rate TYPE DOUBLE PRECISION;
diff --git a/migrations/sqlite/20260413000000_api_clients_fix_refill_rate_type.sql b/migrations/sqlite/20260413000000_api_clients_fix_refill_rate_type.sql
new file mode 100644
index 0000000..411cb7c
--- /dev/null
+++ b/migrations/sqlite/20260413000000_api_clients_fix_refill_rate_type.sql
@@ -0,0 +1 @@
+-- No-op: SQLite stores all floats as 8-byte IEEE 754 regardless of declared type.