diff --git a/app/components/Icons/CollectionIcon.tsx b/app/components/Icons/CollectionIcon.tsx
index 4b00c2c380..14cf595d58 100644
--- a/app/components/Icons/CollectionIcon.tsx
+++ b/app/components/Icons/CollectionIcon.tsx
@@ -1,5 +1,5 @@
 import { observer } from "mobx-react";
-import { CollectionIcon } from "outline-icons";
+import { CollectionIcon, PrivateCollectionIcon } from "outline-icons";
 import { getLuminance } from "polished";
 import * as React from "react";
 import { colorPalette } from "@shared/utils/collections";
@@ -40,8 +40,11 @@ function ResolvedCollectionIcon({
           : "currentColor"
         : collectionColor);
 
+    const Component = collection.isPrivate
+      ? PrivateCollectionIcon
+      : CollectionIcon;
     return (
-      <CollectionIcon
+      <Component
         color={color}
         expanded={expanded}
         size={size}
diff --git a/server/models/User.ts b/server/models/User.ts
index df048994d6..8d67352bfc 100644
--- a/server/models/User.ts
+++ b/server/models/User.ts
@@ -406,24 +406,29 @@ class User extends ParanoidModel<
     false;
 
   /**
-   * Returns the user's active group ids.
+   * Returns the user's active groups.
    *
    * @param options Additional options to pass to the find
-   * @returns An array of group ids
+   * @returns An array of groups
    */
-  public groupIds = async (options: FindOptions<Group> = {}) => {
-    const groupStubs = await Group.scope({
+  public groups = (options: FindOptions<Group> = {}) =>
+    Group.scope({
       method: ["withMembership", this.id],
     }).findAll({
-      attributes: ["id"],
       where: {
         teamId: this.teamId,
       },
       ...options,
     });
 
-    return groupStubs.map((g) => g.id);
-  };
+  /**
+   * Returns the user's active group ids.
+   *
+   * @param options Additional options to pass to the find
+   * @returns An array of group ids
+   */
+  public groupIds = async (options: FindOptions<Group> = {}) =>
+    (await this.groups(options)).map((g) => g.id);
 
   /**
    * Returns the user's active collection ids. This includes collections the user
diff --git a/server/routes/api/groups/groups.ts b/server/routes/api/groups/groups.ts
index ab4da6b2fc..01ebaf2b6b 100644
--- a/server/routes/api/groups/groups.ts
+++ b/server/routes/api/groups/groups.ts
@@ -61,6 +61,7 @@ router.post(
       pagination: ctx.state.pagination,
       data: {
         groups: await Promise.all(groups.map(presentGroup)),
+        // TODO: Deprecated, will remove in the future as language conflicts with GroupMembership
         groupMemberships: (
           await Promise.all(
             groups.map((group) =>
diff --git a/server/routes/api/userMemberships/userMemberships.ts b/server/routes/api/userMemberships/userMemberships.ts
index 3d773e5ca7..3d67f96a14 100644
--- a/server/routes/api/userMemberships/userMemberships.ts
+++ b/server/routes/api/userMemberships/userMemberships.ts
@@ -83,6 +83,7 @@ router.post(
     const { user } = ctx.state.auth;
     const membership = await UserMembership.findByPk(id, {
       transaction,
+      lock: transaction.LOCK.UPDATE,
       rejectOnEmpty: true,
     });
     authorize(user, "update", membership);