diff --git a/app/soapbox/features/group/components/__tests__/group-action-button.test.tsx b/app/soapbox/features/group/components/__tests__/group-action-button.test.tsx
index eb2cf670b..e622c7247 100644
--- a/app/soapbox/features/group/components/__tests__/group-action-button.test.tsx
+++ b/app/soapbox/features/group/components/__tests__/group-action-button.test.tsx
@@ -18,7 +18,7 @@ describe('<GroupActionButton />', () => {
 
     describe('with a private group', () => {
       beforeEach(() => {
-        group = group.set('locked', true);
+        group = { ...group, locked: true };
       });
 
       it('should render the Request Access button', () => {
@@ -30,7 +30,7 @@ describe('<GroupActionButton />', () => {
 
     describe('with a public group', () => {
       beforeEach(() => {
-        group = group.set('locked', false);
+        group = { ...group, locked: false };
       });
 
       it('should render the Join Group button', () => {
@@ -52,7 +52,7 @@ describe('<GroupActionButton />', () => {
 
     describe('with a private group', () => {
       beforeEach(() => {
-        group = group.set('locked', true);
+        group = { ...group, locked: true };
       });
 
       it('should render the Request Access button', () => {
@@ -64,7 +64,7 @@ describe('<GroupActionButton />', () => {
 
     describe('with a public group', () => {
       beforeEach(() => {
-        group = group.set('locked', false);
+        group = { ...group, locked: false };
       });
 
       it('should render the Join Group button', () => {
diff --git a/app/soapbox/hooks/useGroups.ts b/app/soapbox/hooks/useGroups.ts
index 1c48e1e38..65437675b 100644
--- a/app/soapbox/hooks/useGroups.ts
+++ b/app/soapbox/hooks/useGroups.ts
@@ -1,13 +1,12 @@
 import { useEntities, useEntity } from 'soapbox/entity-store/hooks';
-import { normalizeGroup, normalizeGroupRelationship } from 'soapbox/normalizers';
-
-import type { Group, GroupRelationship } from 'soapbox/types/entities';
+import { groupSchema, Group } from 'soapbox/schemas/group';
+import { groupRelationshipSchema, GroupRelationship } from 'soapbox/schemas/group-relationship';
 
 function useGroups() {
   const { entities, ...result } = useEntities<Group>(['Group', ''], '/api/v1/groups', { parser: parseGroup });
   const { relationships } = useGroupRelationships(entities.map(entity => entity.id));
 
-  const groups = entities.map((group) => group.set('relationship', relationships[group.id] || null));
+  const groups = entities.map((group) => ({ ...group, relationship: relationships[group.id] || null }));
 
   return {
     ...result,
@@ -21,7 +20,7 @@ function useGroup(groupId: string, refetch = true) {
 
   return {
     ...result,
-    group: group?.set('relationship', relationship || null),
+    group: group ? { ...group, relationship: relationship || null } : undefined,
   };
 }
 
@@ -45,9 +44,18 @@ function useGroupRelationships(groupIds: string[]) {
   };
 }
 
-// HACK: normalizers currently don't have the desired API.
-// TODO: rewrite normalizers as Zod parsers.
-const parseGroup = (entity: unknown) => entity ? normalizeGroup(entity as Record<string, any>) : undefined;
-const parseGroupRelationship = (entity: unknown) => entity ? normalizeGroupRelationship(entity as Record<string, any>) : undefined;
+const parseGroup = (entity: unknown) => {
+  const result = groupSchema.safeParse(entity);
+  if (result.success) {
+    return result.data;
+  }
+};
+
+const parseGroupRelationship = (entity: unknown) => {
+  const result = groupRelationshipSchema.safeParse(entity);
+  if (result.success) {
+    return result.data;
+  }
+};
 
 export { useGroup, useGroups };
\ No newline at end of file
diff --git a/app/soapbox/normalizers/group.ts b/app/soapbox/normalizers/group.ts
index e4bf1df6b..e50cc9af3 100644
--- a/app/soapbox/normalizers/group.ts
+++ b/app/soapbox/normalizers/group.ts
@@ -23,13 +23,14 @@ export const GroupRecord = ImmutableRecord({
   created_at: '',
   display_name: '',
   domain: '',
-  emojis: ImmutableList<Emoji>(),
+  emojis: [] as Emoji[],
+  group_visibility: '',
   header: '',
   header_static: '',
   id: '',
   locked: false,
   membership_required: false,
-  members_count: undefined as number | undefined,
+  members_count: 0,
   note: '',
   statuses_visibility: 'public',
   uri: '',
@@ -69,7 +70,7 @@ const normalizeHeader = (group: ImmutableMap<string, any>) => {
 /** Normalize emojis */
 const normalizeEmojis = (entity: ImmutableMap<string, any>) => {
   const emojis = entity.get('emojis', ImmutableList()).map(normalizeEmoji);
-  return entity.set('emojis', emojis);
+  return entity.set('emojis', emojis.toArray());
 };
 
 /** Set display name from username, if applicable */
diff --git a/app/soapbox/normalizers/index.ts b/app/soapbox/normalizers/index.ts
index 66daaae27..004049988 100644
--- a/app/soapbox/normalizers/index.ts
+++ b/app/soapbox/normalizers/index.ts
@@ -12,7 +12,7 @@ export { EmojiReactionRecord } from './emoji-reaction';
 export { FilterRecord, normalizeFilter } from './filter';
 export { FilterKeywordRecord, normalizeFilterKeyword } from './filter-keyword';
 export { FilterStatusRecord, normalizeFilterStatus } from './filter-status';
-export { GroupRecord, normalizeGroup } from './group';
+export { normalizeGroup } from './group';
 export { GroupRelationshipRecord, normalizeGroupRelationship } from './group-relationship';
 export { HistoryRecord, normalizeHistory } from './history';
 export { InstanceRecord, normalizeInstance } from './instance';
diff --git a/app/soapbox/schemas/index.ts b/app/soapbox/schemas/index.ts
new file mode 100644
index 000000000..e05df212a
--- /dev/null
+++ b/app/soapbox/schemas/index.ts
@@ -0,0 +1,3 @@
+export { customEmojiSchema, CustomEmoji } from './custom-emoji';
+export { groupSchema, Group } from './group';
+export { groupRelationshipSchema, GroupRelationship } from './group-relationship';
\ No newline at end of file
diff --git a/app/soapbox/types/entities.ts b/app/soapbox/types/entities.ts
index bf717e805..61691a54a 100644
--- a/app/soapbox/types/entities.ts
+++ b/app/soapbox/types/entities.ts
@@ -14,8 +14,6 @@ import {
   FilterRecord,
   FilterKeywordRecord,
   FilterStatusRecord,
-  GroupRecord,
-  GroupRelationshipRecord,
   HistoryRecord,
   InstanceRecord,
   ListRecord,
@@ -48,8 +46,6 @@ type Field = ReturnType<typeof FieldRecord>;
 type Filter = ReturnType<typeof FilterRecord>;
 type FilterKeyword = ReturnType<typeof FilterKeywordRecord>;
 type FilterStatus = ReturnType<typeof FilterStatusRecord>;
-type Group = ReturnType<typeof GroupRecord>;
-type GroupRelationship = ReturnType<typeof GroupRelationshipRecord>;
 type History = ReturnType<typeof HistoryRecord>;
 type Instance = ReturnType<typeof InstanceRecord>;
 type List = ReturnType<typeof ListRecord>;
@@ -95,8 +91,6 @@ export {
   Filter,
   FilterKeyword,
   FilterStatus,
-  Group,
-  GroupRelationship,
   History,
   Instance,
   List,
@@ -114,3 +108,8 @@ export {
   APIEntity,
   EmbeddedEntity,
 };
+
+export type {
+  Group,
+  GroupRelationship,
+} from 'soapbox/schemas';
\ No newline at end of file