diff --git a/google/devtools/testing/v1/test_execution.proto b/google/devtools/testing/v1/test_execution.proto
index 98c3998b4e..e6c4876922 100644
--- a/google/devtools/testing/v1/test_execution.proto
+++ b/google/devtools/testing/v1/test_execution.proto
@@ -1262,7 +1262,7 @@ message UniformSharding {
   // Required. The total number of shards to create. This must always be a
   // positive number that is no greater than the total number of test cases.
   // When you select one or more physical devices, the number of shards must be
-  // <= 50. When you select one or more ARM virtual devices, it must be <= 100.
+  // <= 50. When you select one or more ARM virtual devices, it must be <= 200.
   // When you select only x86 virtual devices, it must be <= 500.
   int32 num_shards = 1;
 }
@@ -1277,7 +1277,7 @@ message ManualSharding {
   // each manually-created shard. You must specify at least one shard if this
   // field is present. When you select one or more physical devices, the number
   // of repeated test_targets_for_shard must be <= 50. When you select one or
-  // more ARM virtual devices, it must be <= 100. When you select only x86
+  // more ARM virtual devices, it must be <= 200. When you select only x86
   // virtual devices, it must be <= 500.
   repeated TestTargetsForShard test_targets_for_shard = 1;
 }
@@ -1329,7 +1329,7 @@ message SmartSharding {
   //
   // Note that there is a limit for maximum number of shards. When you select
   // one or more physical devices, the number of shards must be <= 50. When you
-  // select one or more ARM virtual devices, it must be <= 100. When you select
+  // select one or more ARM virtual devices, it must be <= 200. When you select
   // only x86 virtual devices, it must be <= 500. To guarantee at least one test
   // case for per shard, the number of shards will not exceed the number of test
   // cases. Each shard created counts toward daily test quota.