diff --git a/tools/bots/test_matrix.json b/tools/bots/test_matrix.json
index 9004af0c33e..cb9855da821 100644
--- a/tools/bots/test_matrix.json
+++ b/tools/bots/test_matrix.json
@@ -1184,7 +1184,7 @@
             "co19"
           ],
           "fileset": "front-end",
-          "shards": 1
+          "shards": 2
         },
         {
           "name": "strong co19 tests",
@@ -1193,7 +1193,7 @@
             "co19"
           ],
           "fileset": "front-end",
-          "shards": 1
+          "shards": 2
         },
         {
           "name": "weak sdk tests",