diff --git a/.changeset/mighty-forks-exercise.md b/.changeset/mighty-forks-exercise.md
new file mode 100644
index 0000000000..af842ecba9
--- /dev/null
+++ b/.changeset/mighty-forks-exercise.md
@@ -0,0 +1,6 @@
+---
+'@backstage/plugin-catalog-backend': patch
+---
+
+Change `locations` table's `target` column to text
+Change `refresh-keys` table's `key` column to text
diff --git a/plugins/catalog-backend/migrations/20200511113813_init.js b/plugins/catalog-backend/migrations/20200511113813_init.js
index 710ff537e0..5b7e3b8dec 100644
--- a/plugins/catalog-backend/migrations/20200511113813_init.js
+++ b/plugins/catalog-backend/migrations/20200511113813_init.js
@@ -36,7 +36,7 @@ exports.up = async function up(knex) {
           .comment('Auto-generated ID of the location');
         table.string('type').notNullable().comment('The type of location');
         table
-          .string('target')
+          .text('target')
           .notNullable()
           .comment('The actual target of the location');
       })
diff --git a/plugins/catalog-backend/migrations/20220616202842_refresh_keys.js b/plugins/catalog-backend/migrations/20220616202842_refresh_keys.js
index a7ec819489..ca0a477622 100644
--- a/plugins/catalog-backend/migrations/20220616202842_refresh_keys.js
+++ b/plugins/catalog-backend/migrations/20220616202842_refresh_keys.js
@@ -32,7 +32,7 @@ exports.up = async function up(knex) {
       .onDelete('CASCADE')
       .comment('A reference to the entity that the refresh key is tied to');
     table
-      .string('key')
+      .text('key')
       .notNullable()
       .comment(
         'A reference to a key which should be used to trigger a refresh on this entity',