diff --git a/cli/flags.rs b/cli/flags.rs
index 63960c11816d2db53cf60d470165f3a3e42b7877..ae7d0a669fd336eb7f2f5c9b094f8f570d3f06af 100644
--- a/cli/flags.rs
+++ b/cli/flags.rs
@@ -22,7 +22,7 @@ macro_rules! sset {
 
 macro_rules! std_url {
   ($x:expr) => {
-    concat!("https://deno.land/std@v0.26.0/", $x)
+    concat!("https://deno.land/std@v0.28.1/", $x)
   };
 }