diff --git a/c_src/async_nif.h b/c_src/async_nif.h
index 89c758a..5694c3a 100644
--- a/c_src/async_nif.h
+++ b/c_src/async_nif.h
@@ -34,7 +34,7 @@ extern "C" {
 
 #define ASYNC_NIF_MAX_WORKERS 1024
 #define ASYNC_NIF_MIN_WORKERS 2
-#define ASYNC_NIF_WORKER_QUEUE_SIZE 100
+#define ASYNC_NIF_WORKER_QUEUE_SIZE 4096
 #define ASYNC_NIF_MAX_QUEUED_REQS ASYNC_NIF_WORKER_QUEUE_SIZE * ASYNC_NIF_MAX_WORKERS
 
 struct async_nif_req_entry {