diff --git a/src/main/java/com/amazon/ion/impl/IonCursorBinary.java b/src/main/java/com/amazon/ion/impl/IonCursorBinary.java
index 4e94b2f132..43e64748e3 100644
--- a/src/main/java/com/amazon/ion/impl/IonCursorBinary.java
+++ b/src/main/java/com/amazon/ion/impl/IonCursorBinary.java
@@ -1898,6 +1898,9 @@ public void close() {
                 throwAsIonException(e);
             }
         }
+        buffer = null;
+        containerStack = null;
+        byteBuffer = null;
     }
 
     /* ---- End: version-agnostic parsing, utility, and public API methods ---- */