diff --git a/src/babashka/impl/classes.clj b/src/babashka/impl/classes.clj
index d934d9d3..306d7e75 100644
--- a/src/babashka/impl/classes.clj
+++ b/src/babashka/impl/classes.clj
@@ -375,6 +375,10 @@
           java.util.concurrent.LinkedBlockingQueue
           java.util.concurrent.ScheduledThreadPoolExecutor
           java.util.concurrent.ThreadPoolExecutor
+          java.util.concurrent.ThreadPoolExecutor$AbortPolicy
+          java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy
+          java.util.concurrent.ThreadPoolExecutor$DiscardOldestPolicy
+          java.util.concurrent.ThreadPoolExecutor$DiscardPolicy
           java.util.concurrent.ScheduledExecutorService
           java.util.concurrent.Future
           java.util.concurrent.FutureTask