1 files changed, 5 insertions, 0 deletions
diff --git a/runtime/js/40_process.js b/runtime/js/40_process.js
index c90f38664..e6a62dcf7 100644
--- a/runtime/js/40_process.js
+++ b/runtime/js/40_process.js
@@ -140,6 +140,11 @@ function run({
       ...new SafeArrayIterator(ArrayPrototypeSlice(cmd, 1)),
     ];
   }
+  internals.warnOnDeprecatedApi(
+    "Deno.run()",
+    (new Error()).stack,
+    `Use "Deno.Command()" API instead.`,
+  );
   const res = opRun({
     cmd: ArrayPrototypeMap(cmd, String),
     cwd,