diff --git a/package.json b/package.json
index 2f71cd2..7986d5f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@author.io/iam",
-  "version": "1.0.0-alpha.6",
+  "version": "1.0.0-alpha.7",
   "description": "A Identification and Authorization Management library.",
   "main": "src/index.js",
   "module": "index.js",
diff --git a/src/lib/actors/group.js b/src/lib/actors/group.js
index c53c134..1aafe64 100644
--- a/src/lib/actors/group.js
+++ b/src/lib/actors/group.js
@@ -366,11 +366,11 @@ export default class Group extends Trace {
   }
 
   destroy () {
-    for (const group of this.#memberOf.entries()) {
+    for (const group of this.#memberOf.values()) {
       group.remove(this)
     }
 
-    for (const user of this.#members.entries()) {
+    for (const user of this.#members.values()) {
       user.leave(this)
     }
 
diff --git a/src/lib/actors/user.js b/src/lib/actors/user.js
index 967e778..0e151ff 100644
--- a/src/lib/actors/user.js
+++ b/src/lib/actors/user.js
@@ -277,7 +277,7 @@ export default class User extends Trace {
       return true
     }
 
-    for (const group of this.#memberOf.entries()) {
+    for (const group of this.#memberOf.valuees()) {
       if (group.permitted(role)) {
         return true
       }
@@ -297,7 +297,7 @@ export default class User extends Trace {
    * Destroy relations to the user.
    */
   destroy () {
-    for (const group of this.#memberOf.entries()) {
+    for (const group of this.#memberOf.values()) {
       group.remove(this)
     }