diff --git a/templates/zerver/development/integrations_dev_panel.html b/templates/zerver/development/integrations_dev_panel.html
index 37f6fb4368..a98f392918 100644
--- a/templates/zerver/development/integrations_dev_panel.html
+++ b/templates/zerver/development/integrations_dev_panel.html
@@ -95,8 +95,8 @@
             </div>
             <textarea id="fixture_body"></textarea>
             <div class="buttons">
-                <button id="send_all_fixtures_button" class="btn btn-primary">Send all</button>
-                <button id="send_fixture_button" class="btn btn-primary">Send!</button>
+                <button id="send_all_fixtures_button" class="btn">Send all</button>
+                <button id="send_fixture_button" class="btn">Send!</button>
             </div>
         </div>
         <div class="col1">
diff --git a/web/styles/portico/integrations_dev_panel.css b/web/styles/portico/integrations_dev_panel.css
index e0aac92327..ddff1aa909 100644
--- a/web/styles/portico/integrations_dev_panel.css
+++ b/web/styles/portico/integrations_dev_panel.css
@@ -114,6 +114,19 @@
     justify-content: space-between;
     width: 92%;
     margin-right: 2%;
+
+    button {
+        color: hsl(0deg 0% 100%);
+        background-color: hsl(208deg 56% 53%);
+        border-color: hsl(208deg 56% 47%);
+
+        &:hover,
+        &:active,
+        &:focus {
+            background-color: hsl(208deg 56% 45%);
+            border-color: hsl(208deg 56% 36%);
+        }
+    }
 }
 
 .centerpiece {
diff --git a/web/third/bootstrap/css/bootstrap-btn.css b/web/third/bootstrap/css/bootstrap-btn.css
index b7212e911d..95e39d62f4 100644
--- a/web/third/bootstrap/css/bootstrap-btn.css
+++ b/web/third/bootstrap/css/bootstrap-btn.css
@@ -113,42 +113,6 @@ THE SOFTWARE.
   color: #fff;
   background-color: #333;
 }
-.btn-primary {
-  color: #fff;
-  background-color: #428bca;
-  border-color: #357ebd;
-}
-.btn-primary:hover,
-.btn-primary:focus,
-.btn-primary:active,
-.btn-primary.active,
-.open .dropdown-toggle.btn-primary {
-  color: #fff;
-  background-color: #3276b1;
-  border-color: #285e8e;
-}
-.btn-primary:active,
-.btn-primary.active,
-.open .dropdown-toggle.btn-primary {
-  background-image: none;
-}
-.btn-primary.disabled,
-.btn-primary[disabled],
-.btn-primary.disabled:hover,
-.btn-primary[disabled]:hover,
-.btn-primary.disabled:focus,
-.btn-primary[disabled]:focus,
-.btn-primary.disabled:active,
-.btn-primary[disabled]:active,
-.btn-primary.disabled.active,
-.btn-primary[disabled].active {
-  background-color: #428bca;
-  border-color: #357ebd;
-}
-.btn-primary .badge {
-  color: #428bca;
-  background-color: #fff;
-}
 .btn-success {
   color: #fff;
   background-color: #5cb85c;