diff --git a/src/components/RepositoryNotifications.test.tsx b/src/components/RepositoryNotifications.test.tsx
index 635463ff2..c2bbf92c6 100644
--- a/src/components/RepositoryNotifications.test.tsx
+++ b/src/components/RepositoryNotifications.test.tsx
@@ -64,7 +64,7 @@ describe('components/RepositoryNotifications.tsx', () => {
       </AppContext.Provider>,
     );
 
-    fireEvent.click(screen.getByTitle('Mark Repository as Read'));
+    fireEvent.click(screen.getByTitle('Mark repository as read'));
 
     expect(markRepoNotificationsRead).toHaveBeenCalledWith(
       mockSingleNotification,
@@ -80,7 +80,7 @@ describe('components/RepositoryNotifications.tsx', () => {
       </AppContext.Provider>,
     );
 
-    fireEvent.click(screen.getByTitle('Mark Repository as Done'));
+    fireEvent.click(screen.getByTitle('Mark repository as done'));
 
     expect(markRepoNotificationsDone).toHaveBeenCalledWith(
       mockSingleNotification,
diff --git a/src/components/RepositoryNotifications.tsx b/src/components/RepositoryNotifications.tsx
index c07baa892..fa5604432 100644
--- a/src/components/RepositoryNotifications.tsx
+++ b/src/components/RepositoryNotifications.tsx
@@ -83,7 +83,7 @@ export const RepositoryNotifications: FC<IRepositoryNotifications> = ({
           <HoverGroup>
             {isMarkAsDoneFeatureSupported(repoNotifications[0].account) && (
               <InteractionButton
-                title="Mark Repository as Done"
+                title="Mark repository as done"
                 icon={CheckIcon}
                 size={Size.MEDIUM}
                 onClick={(event: MouseEvent<HTMLElement>) => {
@@ -96,7 +96,7 @@ export const RepositoryNotifications: FC<IRepositoryNotifications> = ({
               />
             )}
             <InteractionButton
-              title="Mark Repository as Read"
+              title="Mark repository as read"
               icon={ReadIcon}
               size={Size.SMALL}
               onClick={(event: MouseEvent<HTMLElement>) => {
diff --git a/src/components/__snapshots__/RepositoryNotifications.test.tsx.snap b/src/components/__snapshots__/RepositoryNotifications.test.tsx.snap
index 92cd56027..7c50de6cf 100644
--- a/src/components/__snapshots__/RepositoryNotifications.test.tsx.snap
+++ b/src/components/__snapshots__/RepositoryNotifications.test.tsx.snap
@@ -27,11 +27,11 @@ exports[`components/RepositoryNotifications.tsx should render itself & its child
         >
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Done"
+            title="Mark repository as done"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Done"
+              aria-label="Mark repository as done"
               class="octicon octicon-check"
               fill="currentColor"
               focusable="false"
@@ -48,11 +48,11 @@ exports[`components/RepositoryNotifications.tsx should render itself & its child
           </button>
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Read"
+            title="Mark repository as read"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Read"
+              aria-label="Mark repository as read"
               class="octicon octicon-read"
               fill="currentColor"
               focusable="false"
@@ -121,11 +121,11 @@ exports[`components/RepositoryNotifications.tsx should render itself & its child
       >
         <button
           class="h-full hover:text-green-500 focus:outline-none"
-          title="Mark Repository as Done"
+          title="Mark repository as done"
           type="button"
         >
           <svg
-            aria-label="Mark Repository as Done"
+            aria-label="Mark repository as done"
             class="octicon octicon-check"
             fill="currentColor"
             focusable="false"
@@ -142,11 +142,11 @@ exports[`components/RepositoryNotifications.tsx should render itself & its child
         </button>
         <button
           class="h-full hover:text-green-500 focus:outline-none"
-          title="Mark Repository as Read"
+          title="Mark repository as read"
           type="button"
         >
           <svg
-            aria-label="Mark Repository as Read"
+            aria-label="Mark repository as read"
             class="octicon octicon-read"
             fill="currentColor"
             focusable="false"
@@ -281,11 +281,11 @@ exports[`components/RepositoryNotifications.tsx should toggle repository notific
         >
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Done"
+            title="Mark repository as done"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Done"
+              aria-label="Mark repository as done"
               class="octicon octicon-check"
               fill="currentColor"
               focusable="false"
@@ -302,11 +302,11 @@ exports[`components/RepositoryNotifications.tsx should toggle repository notific
           </button>
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Read"
+            title="Mark repository as read"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Read"
+              aria-label="Mark repository as read"
               class="octicon octicon-read"
               fill="currentColor"
               focusable="false"
@@ -377,11 +377,11 @@ exports[`components/RepositoryNotifications.tsx should toggle repository notific
         >
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Done"
+            title="Mark repository as done"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Done"
+              aria-label="Mark repository as done"
               class="octicon octicon-check"
               fill="currentColor"
               focusable="false"
@@ -398,11 +398,11 @@ exports[`components/RepositoryNotifications.tsx should toggle repository notific
           </button>
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Read"
+            title="Mark repository as read"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Read"
+              aria-label="Mark repository as read"
               class="octicon octicon-read"
               fill="currentColor"
               focusable="false"
@@ -480,11 +480,11 @@ exports[`components/RepositoryNotifications.tsx should toggle repository notific
       >
         <button
           class="h-full hover:text-green-500 focus:outline-none"
-          title="Mark Repository as Done"
+          title="Mark repository as done"
           type="button"
         >
           <svg
-            aria-label="Mark Repository as Done"
+            aria-label="Mark repository as done"
             class="octicon octicon-check"
             fill="currentColor"
             focusable="false"
@@ -501,11 +501,11 @@ exports[`components/RepositoryNotifications.tsx should toggle repository notific
         </button>
         <button
           class="h-full hover:text-green-500 focus:outline-none"
-          title="Mark Repository as Read"
+          title="Mark repository as read"
           type="button"
         >
           <svg
-            aria-label="Mark Repository as Read"
+            aria-label="Mark repository as read"
             class="octicon octicon-read"
             fill="currentColor"
             focusable="false"
@@ -640,11 +640,11 @@ exports[`components/RepositoryNotifications.tsx should use default repository ic
         >
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Done"
+            title="Mark repository as done"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Done"
+              aria-label="Mark repository as done"
               class="octicon octicon-check"
               fill="currentColor"
               focusable="false"
@@ -661,11 +661,11 @@ exports[`components/RepositoryNotifications.tsx should use default repository ic
           </button>
           <button
             class="h-full hover:text-green-500 focus:outline-none"
-            title="Mark Repository as Read"
+            title="Mark repository as read"
             type="button"
           >
             <svg
-              aria-label="Mark Repository as Read"
+              aria-label="Mark repository as read"
               class="octicon octicon-read"
               fill="currentColor"
               focusable="false"
@@ -743,11 +743,11 @@ exports[`components/RepositoryNotifications.tsx should use default repository ic
       >
         <button
           class="h-full hover:text-green-500 focus:outline-none"
-          title="Mark Repository as Done"
+          title="Mark repository as done"
           type="button"
         >
           <svg
-            aria-label="Mark Repository as Done"
+            aria-label="Mark repository as done"
             class="octicon octicon-check"
             fill="currentColor"
             focusable="false"
@@ -764,11 +764,11 @@ exports[`components/RepositoryNotifications.tsx should use default repository ic
         </button>
         <button
           class="h-full hover:text-green-500 focus:outline-none"
-          title="Mark Repository as Read"
+          title="Mark repository as read"
           type="button"
         >
           <svg
-            aria-label="Mark Repository as Read"
+            aria-label="Mark repository as read"
             class="octicon octicon-read"
             fill="currentColor"
             focusable="false"