diff --git a/src/public/index.html b/src/public/index.html
index a0cd7a6..3c62efd 100644
--- a/src/public/index.html
+++ b/src/public/index.html
@@ -2269,7 +2269,7 @@
                                 },
                             },
                             y: {
-                                min: 0,
+                                min: -20,
                                 max: 100,
                             },
                             y1: {