diff --git a/ee/app/services/merge_requests/approval_service.rb b/ee/app/services/merge_requests/approval_service.rb
index 8122d7042590f8501d47e00d38824b841fe65c8e..3bad19262e0c6002234455f43e3af95aab8fe0fa 100644
--- a/ee/app/services/merge_requests/approval_service.rb
+++ b/ee/app/services/merge_requests/approval_service.rb
@@ -14,6 +14,8 @@ def execute(merge_request)
         if merge_request.approvals_left.zero?
           notification_service.async.approve_mr(merge_request, current_user)
           execute_hooks(merge_request, 'approved')
+        else
+          execute_hooks(merge_request, 'approval')
         end
       end
     end
diff --git a/ee/app/services/merge_requests/remove_approval_service.rb b/ee/app/services/merge_requests/remove_approval_service.rb
index 355e34547b4ec3b4cf26ff13ee28aa74754b5085..a353a25922e2234c91376299c8ee9975919ed031 100644
--- a/ee/app/services/merge_requests/remove_approval_service.rb
+++ b/ee/app/services/merge_requests/remove_approval_service.rb
@@ -13,12 +13,13 @@ def execute(merge_request)
 
       if approval.destroy_all # rubocop: disable DestroyAll
         merge_request.reset_approval_cache!
-
         create_note(merge_request)
 
         if currently_approved
           notification_service.async.unapprove_mr(merge_request, current_user)
           execute_hooks(merge_request, 'unapproved')
+        else
+          execute_hooks(merge_request, 'unapproval')
         end
       end
     end
diff --git a/ee/changelogs/unreleased/approval-unapproval-webhooks.yml b/ee/changelogs/unreleased/approval-unapproval-webhooks.yml
new file mode 100644
index 0000000000000000000000000000000000000000..34074bbbb71e4c9e2e2f17b593a6acdd587654cd
--- /dev/null
+++ b/ee/changelogs/unreleased/approval-unapproval-webhooks.yml
@@ -0,0 +1,5 @@
+---
+title: Add approval and unapproval webhooks
+merge_request: 8742
+author:
+type: added
diff --git a/ee/spec/services/merge_requests/approval_service_spec.rb b/ee/spec/services/merge_requests/approval_service_spec.rb
index 97aa9337362eb2bd2e0544cdea57b6eb59e831e4..a971c146d0cc25aec5a023e934703d508b39dbc3 100644
--- a/ee/spec/services/merge_requests/approval_service_spec.rb
+++ b/ee/spec/services/merge_requests/approval_service_spec.rb
@@ -51,9 +51,9 @@
       end
 
       context 'with remaining approvals' do
-        it 'does not fire a webhook' do
+        it 'fires an approval webhook' do
           expect(merge_request).to receive(:approvals_left).and_return(5)
-          expect(service).not_to receive(:execute_hooks)
+          expect(service).to receive(:execute_hooks).with(merge_request, 'approval')
 
           service.execute(merge_request)
         end
@@ -75,7 +75,7 @@
           allow(service).to receive(:notification_service).and_return(notification_service)
         end
 
-        it 'fires a webhook' do
+        it 'fires an approved webhook' do
           expect(service).to receive(:execute_hooks).with(merge_request, 'approved')
 
           service.execute(merge_request)
diff --git a/ee/spec/services/merge_requests/remove_approval_service_spec.rb b/ee/spec/services/merge_requests/remove_approval_service_spec.rb
index 770b1cdffceb4092ee147b5abe9456ed5fcf3364..92a5d9c42b714b92771fbe3022f36d9f77f24251 100644
--- a/ee/spec/services/merge_requests/remove_approval_service_spec.rb
+++ b/ee/spec/services/merge_requests/remove_approval_service_spec.rb
@@ -35,6 +35,12 @@ def execute!
         execute!
       end
 
+      it 'fires an unapproval webhook' do
+        expect(service).to receive(:execute_hooks).with(merge_request, 'unapproval')
+
+        execute!
+      end
+
       it 'does not send a notification' do
         expect(service).not_to receive(:notification_service)
 
@@ -56,6 +62,12 @@ def execute!
         allow(service).to receive(:notification_service).and_return(notification_service)
       end
 
+      it 'fires an unapproved webhook' do
+        expect(service).to receive(:execute_hooks).with(merge_request, 'unapproved')
+
+        execute!
+      end
+
       it 'sends a notification' do
         expect(notification_service).to receive_message_chain(:async, :unapprove_mr).with(merge_request, user)