diff --git a/webapp/packages/core-blocks/src/layout/TopAppBar.module.css b/webapp/packages/core-blocks/src/layout/TopAppBar.module.css
index 7e50f64e68..d3b277a954 100644
--- a/webapp/packages/core-blocks/src/layout/TopAppBar.module.css
+++ b/webapp/packages/core-blocks/src/layout/TopAppBar.module.css
@@ -12,6 +12,5 @@
   height: 48px;
   padding: 0 8px;
   background-color: var(--theme-primary);
-  z-index: 1;
   flex-shrink: 0;
 }