diff --git a/migrations/20210809203855-appAddonConfigs-alter-value.js b/migrations/20210809203855-appAddonConfigs-alter-value.js
new file mode 100644
index 000000000..ed81ee7f1
--- /dev/null
+++ b/migrations/20210809203855-appAddonConfigs-alter-value.js
@@ -0,0 +1,15 @@
+'use strict';
+
+exports.up = function(db, callback) {
+    db.runSql('ALTER TABLE appAddonConfigs MODIFY value TEXT NOT NULL', [], function (error) {
+        if (error) console.error(error);
+        callback(error);
+    });
+};
+
+exports.down = function(db, callback) {
+    db.runSql('ALTER TABLE appAddonConfigs MODIFY value VARCHAR(512)', [], function (error) {
+        if (error) console.error(error);
+        callback(error);
+    });
+};
diff --git a/migrations/schema.sql b/migrations/schema.sql
index 16bece4c3..2c86abfc7 100644
--- a/migrations/schema.sql
+++ b/migrations/schema.sql
@@ -117,7 +117,7 @@ CREATE TABLE IF NOT EXISTS appAddonConfigs(
     appId VARCHAR(128) NOT NULL,
     addonId VARCHAR(32) NOT NULL,
     name VARCHAR(128) NOT NULL,
-    value VARCHAR(512) NOT NULL,
+    value TEXT NOT NULL,
     FOREIGN KEY(appId) REFERENCES apps(id));
 
 CREATE TABLE IF NOT EXISTS appEnvVars(