diff --git a/app/assets/javascripts/diffs/components/diff_expansion_cell.vue b/app/assets/javascripts/diffs/components/diff_expansion_cell.vue
index 925385fa98a..43edc116ed1 100644
--- a/app/assets/javascripts/diffs/components/diff_expansion_cell.vue
+++ b/app/assets/javascripts/diffs/components/diff_expansion_cell.vue
@@ -223,8 +223,7 @@ export default {
:title="__('Expand up')"
@click="handleExpandLines(EXPAND_UP)"
>
-
-
+
{{ s__('Diffs|Show all lines') }}
@@ -238,8 +237,7 @@ export default {
:title="__('Expand down')"
@click="handleExpandLines(EXPAND_DOWN)"
>
-
-
+
diff --git a/changelogs/unreleased/66161-replace-expand-icons.yml b/changelogs/unreleased/66161-replace-expand-icons.yml
new file mode 100644
index 00000000000..e28e01108a8
--- /dev/null
+++ b/changelogs/unreleased/66161-replace-expand-icons.yml
@@ -0,0 +1,5 @@
+---
+title: Replaced expand diff icons
+merge_request: 31907
+author:
+type: changed