diff --git a/app/views/doorkeeper/applications/_form.html.haml b/app/views/doorkeeper/applications/_form.html.haml
index 39529e59aeeea21fdebe743bce81497284e800ab..9f5d87a961fd7ca18d2b88299e27b9e892131b91 100644
--- a/app/views/doorkeeper/applications/_form.html.haml
+++ b/app/views/doorkeeper/applications/_form.html.haml
@@ -23,4 +23,4 @@
     = render 'shared/tokens/scopes_form', prefix: 'doorkeeper_application', token: application, scopes: @scopes
 
   .gl-mt-3
-    = f.submit _('Save application'), class: "gl-button btn btn-success"
+    = f.submit _('Save application'), class: "gl-button btn btn-confirm"
diff --git a/app/views/doorkeeper/authorizations/new.html.haml b/app/views/doorkeeper/authorizations/new.html.haml
index d89c4bf0161db38f7caa21ac319db7a21567858c..7ea10296d9776d319bb636314b286b2303d7eb4e 100644
--- a/app/views/doorkeeper/authorizations/new.html.haml
+++ b/app/views/doorkeeper/authorizations/new.html.haml
@@ -50,4 +50,4 @@
             = hidden_field_tag :nonce, @pre_auth.nonce
             = hidden_field_tag :code_challenge, @pre_auth.code_challenge
             = hidden_field_tag :code_challenge_method, @pre_auth.code_challenge_method
-            = submit_tag _("Authorize"), class: "gl-button btn btn-success gl-ml-3", data: { qa_selector: 'authorization_button' }
+            = submit_tag _("Authorize"), class: "gl-button btn btn-confirm gl-ml-3", data: { qa_selector: 'authorization_button' }
diff --git a/changelogs/unreleased/btn-confirm-doorkeeper.yml b/changelogs/unreleased/btn-confirm-doorkeeper.yml
new file mode 100644
index 0000000000000000000000000000000000000000..dd36f4dcfc4760a04eb878792a6471cd2c7ac8b9
--- /dev/null
+++ b/changelogs/unreleased/btn-confirm-doorkeeper.yml
@@ -0,0 +1,5 @@
+---
+title: Move to btn-confirm from btn-success in views/doorkeeper directory
+merge_request: 55277
+author: Yogi (@yo)
+type: changed