diff --git a/packages/core/src/theme-default.css b/packages/core/src/theme-default.css
index b70ba9d6..0c1c1abe 100644
--- a/packages/core/src/theme-default.css
+++ b/packages/core/src/theme-default.css
@@ -36,6 +36,7 @@
 
 .vue-flow__edge-text {
   font-size: 10px;
+  fill: #000;
 }
 
 .vue-flow__edge-textbg {