diff --git a/gradle.properties b/gradle.properties
index 0000fbf..2d27e7c 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,4 +1,4 @@
 project_group = me.topchetoeu
 project_name = jscript
-project_version = 0.9.10-beta
+project_version = 0.9.11-beta
 main_class = me.topchetoeu.jscript.utils.JScriptRepl
diff --git a/src/java/me/topchetoeu/jscript/lib/AsyncFunctionLib.java b/src/java/me/topchetoeu/jscript/lib/AsyncFunctionLib.java
index 48571a9..6b10d51 100644
--- a/src/java/me/topchetoeu/jscript/lib/AsyncFunctionLib.java
+++ b/src/java/me/topchetoeu/jscript/lib/AsyncFunctionLib.java
@@ -54,7 +54,7 @@ public class AsyncFunctionLib extends FunctionValue {
                     public void onReject(EngineException err) {
                         next(ctx, Values.NO_RETURN, err);
                     }
-                });
+                }.defer(ctx));
             }
         }
 
diff --git a/src/java/me/topchetoeu/jscript/lib/AsyncGeneratorLib.java b/src/java/me/topchetoeu/jscript/lib/AsyncGeneratorLib.java
index d913edb..3096f51 100644
--- a/src/java/me/topchetoeu/jscript/lib/AsyncGeneratorLib.java
+++ b/src/java/me/topchetoeu/jscript/lib/AsyncGeneratorLib.java
@@ -62,7 +62,7 @@ public class AsyncGeneratorLib {
                 @Override public void onReject(EngineException err) {
                     next(ctx, Values.NO_RETURN, Values.NO_RETURN, err);
                 }
-            });
+            }.defer(ctx));
         }
         else if (state == 2) {
             var obj = new ObjectValue();