diff --git a/src/models/License.ts b/src/models/License.ts
index 2212b95..0756b9d 100644
--- a/src/models/License.ts
+++ b/src/models/License.ts
@@ -19,6 +19,8 @@ export interface ILicense {
     groups?: string[],
     permissions?: string[],
     meta?: ILicenseMeta[],
+    maxUses: number,
+    currentUses: number,
     expirationDate?: Date
 }
 
@@ -34,6 +36,14 @@ const LicenseSchema = new Schema<ILicense>({
     groups: [String],
     permissions: [String],
     meta: [Array],
+    maxUses: {
+        type: Number,
+        default: -1
+    },
+    currentUses: {
+        type: Number,
+        default: 0
+    },
     expirationDate: {
         type: Date,
         default: Date.now
@@ -41,7 +51,7 @@ const LicenseSchema = new Schema<ILicense>({
 });
 
 LicenseSchema.plugin(fieldEncryption, {
-    fields: ["projectId", "key", "groups", "permissions", "meta", "expirationDate"],
+    fields: ["projectId", "key", "groups", "permissions", "meta", "maxUses", "currentUses", "expirationDate"],
     secret: process.env.ENC_KEY,
     saltGenerator: () => process.env.SIG_KEY
 });