diff --git a/filter-plugin/logstash-filter-postgres-guardium/AwsPostgres_README.md b/filter-plugin/logstash-filter-postgres-guardium/AwsPostgres_README.md
index 11f48a1aa..b09cfea36 100644
--- a/filter-plugin/logstash-filter-postgres-guardium/AwsPostgres_README.md
+++ b/filter-plugin/logstash-filter-postgres-guardium/AwsPostgres_README.md
@@ -7,6 +7,7 @@
 - Supported Guardium versions:
   - Guardium Data Protection: 11.4 and later
   - Guardium Data Security Center: 3.2 and later
+* Supported database versions: 13, 14
 
 ## Configuring native logging (optional)