diff --git a/sql/supporters-schema.sql b/sql/supporters-schema.sql
index da85a08..d10232a 100644
--- a/sql/supporters-schema.sql
+++ b/sql/supporters-schema.sql
@@ -53,8 +53,8 @@ DROP TABLE IF EXISTS "request_hold";
 CREATE TABLE "request_hold" (
     "id" integer NOT NULL PRIMARY KEY,
     "request_id" integer NOT NULL,
-    "hold_date" TEXT NOT NULL,
-    "release_date" TEXT,
+    "hold_date" date NOT NULL,
+    "release_date" date,
     "who" varchar(300) NOT NULL,
     "why" TEXT
 );