diff --git a/DEPS b/DEPS
index 0353d74..94da789 100644
--- a/DEPS
+++ b/DEPS
@@ -44,7 +44,7 @@
   # co19 is a cipd package. Use update.sh in tests/co19[_2] to update these
   # hashes. It requires access to the dart-build-access group, which EngProd
   # has.
-  "co19_rev": "12eb7bb3dd199c817babce7eb65266b90eb8deca",
+  "co19_rev": "28b7e665580cecdf64bc3c81c5b4ed137380c33d",
   "co19_2_rev": "e48b3090826cf40b8037648f19d211e8eab1b4b6",
 
   # The internal benchmarks to use. See go/dart-benchmarks-internal