diff --git a/packages/api-explorer/src/JsonForm/custom-bootstrap4.css b/packages/api-explorer/src/JsonForm/custom-bootstrap4.css
index 48404d7ca..b22e578ea 100644
--- a/packages/api-explorer/src/JsonForm/custom-bootstrap4.css
+++ b/packages/api-explorer/src/JsonForm/custom-bootstrap4.css
@@ -28,6 +28,10 @@
     margin: 0px;
 }
 
+.btn:focus, .btn-secondary:focus {
+    box-shadow: none !important;
+}
+
 /** MIA CSS */
 
 .mia-container-wrapper {