diff --git a/src/app/(auth-state)/admin/tags/page.tsx b/src/app/(auth-state)/admin/tags/page.tsx
index f15931be..36810ec7 100644
--- a/src/app/(auth-state)/admin/tags/page.tsx
+++ b/src/app/(auth-state)/admin/tags/page.tsx
@@ -6,6 +6,8 @@ import { Fragment } from 'react';
 import DeleteButton from '@/admin/DeleteButton';
 import { photoQuantityText } from '@/photo';
 import { getUniqueTagsWithCountCached } from '@/cache';
+import PhotoTag from '@/tag/PhotoTag';
+import { formatTag } from '@/tag';
 
 export const runtime = 'edge';
 
@@ -21,9 +23,9 @@ export default async function AdminPhotosPage() {
               {tags.map(({ tag, count }) =>
                 <Fragment key={tag}>
                   <div className="pr-2">
-                    {tag}
+                    <PhotoTag {...{ tag }} />
                   </div>
-                  <div className="text-dim">
+                  <div className="text-dim uppercase">
                     {photoQuantityText(count, false)}
                   </div>
                   <div />
@@ -31,7 +33,7 @@ export default async function AdminPhotosPage() {
                     action={deletePhotoTagGloballyAction}
                     confirmText={
                       // eslint-disable-next-line max-len
-                      `Are you sure you want to remove "${tag}?" from ${photoQuantityText(count, false).toLowerCase()}?`}
+                      `Are you sure you want to remove "${formatTag(tag)}?" from ${photoQuantityText(count, false).toLowerCase()}?`}
                   >
                     <input type="hidden" name="tag" value={tag} />
                     <DeleteButton />
diff --git a/src/photo/actions.ts b/src/photo/actions.ts
index 2b1c862f..930c55ad 100644
--- a/src/photo/actions.ts
+++ b/src/photo/actions.ts
@@ -5,6 +5,7 @@ import {
   sqlInsertPhoto,
   sqlDeletePhotoTagGlobally,
   sqlUpdatePhoto,
+  sqlRenamePhotoTagGlobally,
 } from '@/services/postgres';
 import { convertFormDataToPhoto } from './form';
 import { redirect } from 'next/navigation';
@@ -71,6 +72,17 @@ export async function deletePhotoTagGloballyAction(formData: FormData) {
   revalidatePhotosKey();
 }
 
+export async function renamePhotoTagGloballyAction(formData: FormData) {
+  const tag = formData.get('tag') as string;
+  const newTag = formData.get('newTag') as string;
+
+  if (tag && newTag && tag !== newTag) {
+    await sqlRenamePhotoTagGlobally(tag, newTag);
+
+    revalidatePhotosKey();
+  }
+}
+
 export async function deleteBlobPhotoAction(formData: FormData) {
   await deleteBlobPhoto(formData.get('url') as string);
 
diff --git a/src/services/postgres.ts b/src/services/postgres.ts
index aa8967be..2a30424d 100644
--- a/src/services/postgres.ts
+++ b/src/services/postgres.ts
@@ -135,7 +135,14 @@ export const sqlUpdatePhoto = (photo: PhotoDbInsert) =>
 export const sqlDeletePhotoTagGlobally = (tag: string) =>
   sql`
     UPDATE photos
-    SET tags=array_remove(tags, ${tag})
+    SET tags=ARRAY_REMOVE(tags, ${tag})
+    WHERE ${tag}=ANY(tags)
+  `;
+
+export const sqlRenamePhotoTagGlobally = (tag: string, newTag: string) =>
+  sql`
+    UPDATE photos
+    SET tags=ARRAY_REPLACE(tags, ${tag}, ${newTag})
     WHERE ${tag}=ANY(tags)
   `;
 
diff --git a/src/tag/PhotoTag.tsx b/src/tag/PhotoTag.tsx
index 6d016a74..6526ab05 100644
--- a/src/tag/PhotoTag.tsx
+++ b/src/tag/PhotoTag.tsx
@@ -2,6 +2,7 @@ import Link from 'next/link';
 import { pathForTag } from '@/site/paths';
 import { FaTag } from 'react-icons/fa';
 import { cc } from '@/utility/css';
+import { formatTag } from '.';
 
 export default function PhotoTag({
   tag,
@@ -27,7 +28,7 @@ export default function PhotoTag({
           )}
         />}
       <span className="uppercase">
-        {tag.replaceAll('-', ' ')}
+        {formatTag(tag)}
       </span>
     </Link>
   );
diff --git a/src/tag/index.ts b/src/tag/index.ts
index a3e96f85..8b2d7322 100644
--- a/src/tag/index.ts
+++ b/src/tag/index.ts
@@ -7,12 +7,15 @@ import {
 import { absolutePathForTag, absolutePathForTagImage } from '@/site/paths';
 import { capitalizeWords } from '@/utility/string';
 
+export const formatTag = (tag: string) =>
+  capitalizeWords(tag.replaceAll('-', ' '));
+
 export const titleForTag = (
   tag: string,
   photos:Photo[],
   explicitCount?: number,
 ) => [
-  capitalizeWords(tag.replaceAll('-', ' ')),
+  formatTag(tag),
   photoQuantityText(explicitCount ?? photos.length),
 ].join(' ');