diff --git a/test_runner/src/main/kotlin/ftl/args/IArgs.kt b/test_runner/src/main/kotlin/ftl/args/IArgs.kt
index 570fce48a5..fc16a9b4a1 100644
--- a/test_runner/src/main/kotlin/ftl/args/IArgs.kt
+++ b/test_runner/src/main/kotlin/ftl/args/IArgs.kt
@@ -69,7 +69,7 @@ interface IArgs {
         // num_shards must be >= 1, and <= 50
         val AVAILABLE_PHYSICAL_SHARD_COUNT_RANGE = 1..50
 
-        val AVAILABLE_VIRTUAL_SHARD_COUNT_RANGE = 1..250
+        val AVAILABLE_VIRTUAL_SHARD_COUNT_RANGE = 1..500
     }
 
     interface ICompanion {