diff --git a/THIRD-PARTY.txt b/THIRD-PARTY.txt
index 1470c3a40..939162eb1 100644
--- a/THIRD-PARTY.txt
+++ b/THIRD-PARTY.txt
@@ -33,6 +33,7 @@ List of third-party dependencies grouped by their license type.
         * Apache Commons Logging (commons-logging:commons-logging:1.3.6 - https://commons.apache.org/proper/commons-logging/)
         * Apache Commons Logging (commons-logging:commons-logging:1.4.0 - https://commons.apache.org/proper/commons-logging/)
         * Apache Commons Math (org.apache.commons:commons-math3:3.6.1 - http://commons.apache.org/proper/commons-math/)
+        * Apache Commons Secure XML (org.apache.commons:commons-secure-xml:1.1.0 - https://commons.apache.org/proper/commons-secure-xml/)
         * Apache FontBox (org.apache.pdfbox:fontbox:3.0.8 - http://pdfbox.apache.org/)
         * Apache Hadoop Client API (org.apache.hadoop:hadoop-client-api:3.5.0 - no url defined)
         * Apache Hadoop Client Runtime (org.apache.hadoop:hadoop-client-runtime:3.5.0 - no url defined)