diff --git a/frontend/less/espo/custom.less b/frontend/less/espo/custom.less
index 7acea26a1d..1cf43062b1 100644
--- a/frontend/less/espo/custom.less
+++ b/frontend/less/espo/custom.less
@@ -235,6 +235,10 @@ blockquote {
     border-width: 0;
 }
 
+th {
+    font-weight: 600;
+}
+
 .table thead > tr > th {
     border-bottom: 1px solid @table-border-color;
     font-weight: normal;