diff --git a/resources/newProblem.scss b/resources/newProblem.scss
index b3209b7..9d2551f 100644
--- a/resources/newProblem.scss
+++ b/resources/newProblem.scss
@@ -266,18 +266,18 @@ button:hover, button:focus {
     border-radius: 50%;
 }
 
-.btn.btn-tertiary {
+.btn.btn-primary {
     color: #fff;
     background: var(--green);
     border-color: var(--green);
 }
 
-.btn.btn-tertiary:hover, .btn.btn-tertiary:focus {
+.btn.btn-primary:hover, .btn.btn-primary:focus {
     border-color: green !important;
     background: green !important;
 }
 
-.btn.btn-tertiary .icon i {
+.btn.btn-primary .icon i {
     color: var(--green);
 }
 
diff --git a/templates/problem/problem.html b/templates/problem/problem.html
index 572a40f..f5e276f 100644
--- a/templates/problem/problem.html
+++ b/templates/problem/problem.html
@@ -144,7 +144,7 @@
 {% block info_float %}
   {% if request.user.is_authenticated and request.in_contest_mode and submission_limit %}
     {% if submissions_left > 0 %}
-      <button onclick="redirectTo('{{ url('problem_submit', problem.code) }}')" class="btn btn-tertiary btn-block btn-round">
+      <button onclick="redirectTo('{{ url('problem_submit', problem.code) }}')" class="btn btn-primary btn-block btn-round">
         <span>{{ _('Submit') }}</span>
         <div class="icon icon-round d-flex align-items-center justify-content-center">
           <i class="fa fa-send"></i>
@@ -158,7 +158,7 @@
         {% endtrans %}
       </div>
     {% else %}
-      <button onclick="redirectTo('{{ url('problem_submit', problem.code) }}')" class="btn btn-tertiary btn-block btn-round">
+      <button onclick="redirectTo('{{ url('problem_submit', problem.code) }}')" class="btn btn-primary btn-block btn-round">
         <span>{{ _('Submit') }}</span>
         <div class="icon icon-round d-flex align-items-center justify-content-center">
           <i class="fa fa-send"></i>
@@ -167,7 +167,7 @@
       <div class="no-submissions-left submissions-left">{{ _('0 submissions left') }}</div>
     {% endif %}
   {% else %}
-    <button onclick="redirectTo('{{ url('problem_submit', problem.code) }}')" class="btn btn-tertiary btn-block btn-round">
+    <button onclick="redirectTo('{{ url('problem_submit', problem.code) }}')" class="btn btn-primary btn-block btn-round">
       <span>{{ _('Submit') }}</span>
       <div class="icon icon-round d-flex align-items-center justify-content-center">
         <i class="fa fa-send"></i>