diff --git a/app/assets/javascripts/notes/components/note_actions.vue b/app/assets/javascripts/notes/components/note_actions.vue
index fc73726857d..aabb77f6a85 100644
--- a/app/assets/javascripts/notes/components/note_actions.vue
+++ b/app/assets/javascripts/notes/components/note_actions.vue
@@ -86,9 +86,6 @@ export default {
   },
   computed: {
     ...mapGetters(['getUserDataByProp']),
-    showReplyButton() {
-      return gon.features && gon.features.replyToIndividualNotes && this.showReply;
-    },
     shouldShowActionsDropdown() {
       return this.currentUserId && (this.canEdit || this.canReportAsAbuse);
     },
@@ -167,7 +164,7 @@ export default {
       </a>
     </div>
     <reply-button
-      v-if="showReplyButton"
+      v-if="showReply"
       ref="replyButton"
       class="js-reply-button"
       @startReplying="$emit('startReplying')"
diff --git a/app/controllers/concerns/issuable_actions.rb b/app/controllers/concerns/issuable_actions.rb
index 05d88429cfe..8ef3b6502df 100644
--- a/app/controllers/concerns/issuable_actions.rb
+++ b/app/controllers/concerns/issuable_actions.rb
@@ -7,9 +7,6 @@ module IssuableActions
   included do
     before_action :authorize_destroy_issuable!, only: :destroy
     before_action :authorize_admin_issuable!, only: :bulk_update
-    before_action only: :show do
-      push_frontend_feature_flag(:reply_to_individual_notes, default_enabled: true)
-    end
   end
 
   def permitted_keys
diff --git a/app/models/individual_note_discussion.rb b/app/models/individual_note_discussion.rb
index 3b6b68a9c5f..d926e39f96e 100644
--- a/app/models/individual_note_discussion.rb
+++ b/app/models/individual_note_discussion.rb
@@ -14,7 +14,7 @@ class IndividualNoteDiscussion < Discussion
   end
 
   def can_convert_to_discussion?
-    noteable.supports_replying_to_individual_notes? && Feature.enabled?(:reply_to_individual_notes, default_enabled: true)
+    noteable.supports_replying_to_individual_notes?
   end
 
   def convert_to_discussion!(save: false)
diff --git a/spec/features/merge_request/user_posts_notes_spec.rb b/spec/features/merge_request/user_posts_notes_spec.rb
index dc0862be6fc..e5770905dbd 100644
--- a/spec/features/merge_request/user_posts_notes_spec.rb
+++ b/spec/features/merge_request/user_posts_notes_spec.rb
@@ -67,18 +67,7 @@ describe 'Merge request > User posts notes', :js do
       end
     end
 
-    describe 'when reply_to_individual_notes feature flag is disabled' do
-      before do
-        stub_feature_flags(reply_to_individual_notes: false)
-        visit project_merge_request_path(project, merge_request)
-      end
-
-      it 'does not show a reply button' do
-        expect(page).to have_no_selector('.js-reply-button')
-      end
-    end
-
-    describe 'when reply_to_individual_notes feature flag is not set' do
+    describe 'reply button' do
       before do
         visit project_merge_request_path(project, merge_request)
       end
diff --git a/spec/javascripts/notes/components/note_actions_spec.js b/spec/javascripts/notes/components/note_actions_spec.js
index d604e90b529..0cfcc994234 100644
--- a/spec/javascripts/notes/components/note_actions_spec.js
+++ b/spec/javascripts/notes/components/note_actions_spec.js
@@ -128,87 +128,33 @@ describe('noteActions', () => {
     });
   });
 
-  describe('with feature flag replyToIndividualNotes enabled', () => {
+  describe('for showReply = true', () => {
     beforeEach(() => {
-      gon.features = {
-        replyToIndividualNotes: true,
-      };
-    });
-
-    afterEach(() => {
-      gon.features = {};
-    });
-
-    describe('for showReply = true', () => {
-      beforeEach(() => {
-        wrapper = shallowMountNoteActions({
-          ...props,
-          showReply: true,
-        });
-      });
-
-      it('shows a reply button', () => {
-        const replyButton = wrapper.find({ ref: 'replyButton' });
-
-        expect(replyButton.exists()).toBe(true);
+      wrapper = shallowMountNoteActions({
+        ...props,
+        showReply: true,
       });
     });
 
-    describe('for showReply = false', () => {
-      beforeEach(() => {
-        wrapper = shallowMountNoteActions({
-          ...props,
-          showReply: false,
-        });
-      });
+    it('shows a reply button', () => {
+      const replyButton = wrapper.find({ ref: 'replyButton' });
 
-      it('does not show a reply button', () => {
-        const replyButton = wrapper.find({ ref: 'replyButton' });
-
-        expect(replyButton.exists()).toBe(false);
-      });
+      expect(replyButton.exists()).toBe(true);
     });
   });
 
-  describe('with feature flag replyToIndividualNotes disabled', () => {
+  describe('for showReply = false', () => {
     beforeEach(() => {
-      gon.features = {
-        replyToIndividualNotes: false,
-      };
-    });
-
-    afterEach(() => {
-      gon.features = {};
-    });
-
-    describe('for showReply = true', () => {
-      beforeEach(() => {
-        wrapper = shallowMountNoteActions({
-          ...props,
-          showReply: true,
-        });
-      });
-
-      it('does not show a reply button', () => {
-        const replyButton = wrapper.find({ ref: 'replyButton' });
-
-        expect(replyButton.exists()).toBe(false);
+      wrapper = shallowMountNoteActions({
+        ...props,
+        showReply: false,
       });
     });
 
-    describe('for showReply = false', () => {
-      beforeEach(() => {
-        wrapper = shallowMountNoteActions({
-          ...props,
-          showReply: false,
-        });
-      });
+    it('does not show a reply button', () => {
+      const replyButton = wrapper.find({ ref: 'replyButton' });
 
-      it('does not show a reply button', () => {
-        const replyButton = wrapper.find({ ref: 'replyButton' });
-
-        expect(replyButton.exists()).toBe(false);
-      });
+      expect(replyButton.exists()).toBe(false);
     });
   });
 });
diff --git a/spec/services/notes/build_service_spec.rb b/spec/services/notes/build_service_spec.rb
index af4daff336b..96fff20f7fb 100644
--- a/spec/services/notes/build_service_spec.rb
+++ b/spec/services/notes/build_service_spec.rb
@@ -128,39 +128,21 @@ describe Notes::BuildService do
 
       subject { described_class.new(project, author, note: 'Test', in_reply_to_discussion_id: note.discussion_id).execute }
 
-      shared_examples 'an individual note reply' do
+      it 'sets the note up to be in reply to that note' do
+        expect(subject).to be_valid
+        expect(subject).to be_a(DiscussionNote)
+        expect(subject.discussion_id).to eq(note.discussion_id)
+      end
+
+      context 'when noteable does not support replies' do
+        let(:note) { create(:note_on_commit) }
+
         it 'builds another individual note' do
           expect(subject).to be_valid
           expect(subject).to be_a(Note)
           expect(subject.discussion_id).not_to eq(note.discussion_id)
         end
       end
-
-      context 'when reply_to_individual_notes is disabled' do
-        before do
-          stub_feature_flags(reply_to_individual_notes: false)
-        end
-
-        it_behaves_like 'an individual note reply'
-      end
-
-      context 'when reply_to_individual_notes is enabled' do
-        before do
-          stub_feature_flags(reply_to_individual_notes: true)
-        end
-
-        it 'sets the note up to be in reply to that note' do
-          expect(subject).to be_valid
-          expect(subject).to be_a(DiscussionNote)
-          expect(subject.discussion_id).to eq(note.discussion_id)
-        end
-
-        context 'when noteable does not support replies' do
-          let(:note) { create(:note_on_commit) }
-
-          it_behaves_like 'an individual note reply'
-        end
-      end
     end
 
     it 'builds a note without saving it' do
diff --git a/spec/services/notes/create_service_spec.rb b/spec/services/notes/create_service_spec.rb
index 8d8e81173ff..bcbb8950910 100644
--- a/spec/services/notes/create_service_spec.rb
+++ b/spec/services/notes/create_service_spec.rb
@@ -298,41 +298,20 @@ describe Notes::CreateService do
 
       subject { described_class.new(project, user, reply_opts).execute }
 
-      context 'when reply_to_individual_notes is disabled' do
-        before do
-          stub_feature_flags(reply_to_individual_notes: false)
-        end
-
-        it 'creates an individual note' do
-          expect(subject.type).to eq(nil)
-          expect(subject.discussion_id).not_to eq(existing_note.discussion_id)
-        end
-
-        it 'does not convert existing note' do
-          expect { subject }.not_to change { existing_note.reload.type }
-        end
+      it 'creates a DiscussionNote in reply to existing note' do
+        expect(subject).to be_a(DiscussionNote)
+        expect(subject.discussion_id).to eq(existing_note.discussion_id)
       end
 
-      context 'when reply_to_individual_notes is enabled' do
-        before do
-          stub_feature_flags(reply_to_individual_notes: true)
-        end
+      it 'converts existing note to DiscussionNote' do
+        expect do
+          existing_note
 
-        it 'creates a DiscussionNote in reply to existing note' do
-          expect(subject).to be_a(DiscussionNote)
-          expect(subject.discussion_id).to eq(existing_note.discussion_id)
-        end
+          Timecop.freeze(Time.now + 1.minute) { subject }
 
-        it 'converts existing note to DiscussionNote' do
-          expect do
-            existing_note
-
-            Timecop.freeze(Time.now + 1.minute) { subject }
-
-            existing_note.reload
-          end.to change { existing_note.type }.from(nil).to('DiscussionNote')
-             .and change { existing_note.updated_at }
-        end
+          existing_note.reload
+        end.to change { existing_note.type }.from(nil).to('DiscussionNote')
+            .and change { existing_note.updated_at }
       end
     end
   end