diff --git a/sdk-actors/src/main/java/io/dapr/actors/runtime/AbstractActor.java b/sdk-actors/src/main/java/io/dapr/actors/runtime/AbstractActor.java
index 5df2ed137..b7f1308c6 100644
--- a/sdk-actors/src/main/java/io/dapr/actors/runtime/AbstractActor.java
+++ b/sdk-actors/src/main/java/io/dapr/actors/runtime/AbstractActor.java
@@ -163,7 +163,7 @@ public abstract class AbstractActor {
           this.actorRuntimeContext.getActorTypeInformation().getName(),
           this.id.toString(),
           actorTimer.getName(),
-          this.actorRuntimeContext.getObjectSerializer().serialize(actorTimer));
+          INTERNAL_SERIALIZER.serialize(actorTimer));
       } catch (Exception e) {
         return Mono.error(e);
       }