diff --git a/app/assets/javascripts/notes/components/discussion_counter.vue b/app/assets/javascripts/notes/components/discussion_counter.vue
index c7cfc0f0f3b..307e56708e0 100644
--- a/app/assets/javascripts/notes/components/discussion_counter.vue
+++ b/app/assets/javascripts/notes/components/discussion_counter.vue
@@ -57,7 +57,7 @@ export default {
           class="line-resolve-btn is-disabled"
           type="button"
         >
-          <icon name="check-circle" />
+          <icon :name="allResolved ? 'check-circle-filled' : 'check-circle'" />
         </span>
         <span class="line-resolve-text">
           {{ resolvedDiscussionsCount }}/{{ resolvableDiscussionsCount }}
diff --git a/app/assets/javascripts/notes/components/note_actions.vue b/app/assets/javascripts/notes/components/note_actions.vue
index 5a4ff15d198..78f397ccc12 100644
--- a/app/assets/javascripts/notes/components/note_actions.vue
+++ b/app/assets/javascripts/notes/components/note_actions.vue
@@ -135,7 +135,7 @@ export default {
         @click="onResolve"
       >
         <template v-if="!isResolving">
-          <icon name="check-circle" />
+          <icon :name="isResolved ? 'check-circle-filled' : 'check-circle'" />
         </template>
         <gl-loading-icon v-else inline />
       </button>
diff --git a/app/assets/stylesheets/pages/notes.scss b/app/assets/stylesheets/pages/notes.scss
index 50c87e55f56..170432a9e62 100644
--- a/app/assets/stylesheets/pages/notes.scss
+++ b/app/assets/stylesheets/pages/notes.scss
@@ -822,6 +822,7 @@ $note-form-margin-left: 72px;
 
   .line-resolve-btn {
     margin-right: 5px;
+    color: $gray-darkest;
 
     svg {
       vertical-align: middle;
@@ -836,7 +837,6 @@ $note-form-margin-left: 72px;
   background-color: transparent;
   border: 0;
   outline: 0;
-  color: $gray-darkest;
   transition: color $general-hover-transition-duration $general-hover-transition-curve;
 
   &.is-disabled {
diff --git a/changelogs/unreleased/61024-update-resolved-icon.yml b/changelogs/unreleased/61024-update-resolved-icon.yml
new file mode 100644
index 00000000000..4a4de9eb13a
--- /dev/null
+++ b/changelogs/unreleased/61024-update-resolved-icon.yml
@@ -0,0 +1,5 @@
+---
+title: Add check circle filled icon for resolved comments
+merge_request: 28663
+author: 
+type: changed