diff --git a/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoder.java b/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoder.java
index d375640..e4846eb 100644
--- a/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoder.java
+++ b/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoder.java
@@ -12,6 +12,10 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
+ *
+ * Note: This file contains changes from Trinodb.  Specifically the decodeTree and locateNode methods
+ * (rev 03d8e5abc686c5c4a9f96ca14db07e2aed880174)
+ * https://github.com/trinodb/trino/blob/359/lib/trino-record-decoder/src/main/java/io/trino/decoder/json/JsonRowDecoder.java
  */
 
 package io.trino.plugin.pravega.decoder;
diff --git a/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoderFactory.java b/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoderFactory.java
index c501f9a..b9462ae 100644
--- a/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoderFactory.java
+++ b/trino/src/main/java/io/trino/plugin/pravega/decoder/JsonRowDecoderFactory.java
@@ -12,6 +12,10 @@
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
+ *
+ * Note: This class file is from Trinodb
+ * (rev 03d8e5abc686c5c4a9f96ca14db07e2aed880174)
+ * https://github.com/trinodb/trino/blob/359/lib/trino-record-decoder/src/main/java/io/trino/decoder/json/JsonRowDecoderFactory.java
  */
 
 package io.trino.plugin.pravega.decoder;
diff --git a/trino/src/test/java/io/trino/plugin/pravega/integration/CodecSupplier.java b/trino/src/test/java/io/trino/plugin/pravega/integration/CodecSupplier.java
index 636c8d1..53919f4 100644
--- a/trino/src/test/java/io/trino/plugin/pravega/integration/CodecSupplier.java
+++ b/trino/src/test/java/io/trino/plugin/pravega/integration/CodecSupplier.java
@@ -13,9 +13,9 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
- * Note: This class file is from PrestoDb
- * (rev a8968160e1840ac67a5f63def27d31c0ef0acde7)
- * https://github.com/prestodb/presto/blob/0.247/presto-kafka/src/test/java/com/facebook/presto/kafka/util/CodecSupplier.java
+ * Note: This class file is from Trinodb
+ * (rev 03d8e5abc686c5c4a9f96ca14db07e2aed880174)
+ * https://github.com/trinodb/trino/blob/359/plugin/trino-kafka/src/test/java/io/trino/plugin/kafka/util/CodecSupplier.java
  */
 
 package io.trino.plugin.pravega.integration;
diff --git a/trino/src/test/java/io/trino/plugin/pravega/integration/PravegaLoader.java b/trino/src/test/java/io/trino/plugin/pravega/integration/PravegaLoader.java
index 4069bf7..1412f05 100644
--- a/trino/src/test/java/io/trino/plugin/pravega/integration/PravegaLoader.java
+++ b/trino/src/test/java/io/trino/plugin/pravega/integration/PravegaLoader.java
@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
- * Note: This file contains some code from PrestoDb (majority of the "ResultsSession" implementation)
+ * Note: This file contains some code from PrestoDB (majority of the "ResultsSession" implementation)
  * (rev a8968160e1840ac67a5f63def27d31c0ef0acde7)
  * https://github.com/prestodb/presto/blob/0.247/presto-kafka/src/test/java/com/facebook/presto/kafka/util/KafkaLoader.java
  */