diff --git a/pljava-api/src/main/java/org/postgresql/pljava/annotation/processing/DDRProcessor.java b/pljava-api/src/main/java/org/postgresql/pljava/annotation/processing/DDRProcessor.java
index 56eda5fc0..ccd2a8a7f 100644
--- a/pljava-api/src/main/java/org/postgresql/pljava/annotation/processing/DDRProcessor.java
+++ b/pljava-api/src/main/java/org/postgresql/pljava/annotation/processing/DDRProcessor.java
@@ -173,7 +173,7 @@ public SourceVersion getSupportedSourceVersion()
 		 * Update latest_tested to be the latest Java release on which this
 		 * annotation processor has been tested without problems.
 		 */
-		int latest_tested = 20;
+		int latest_tested = 21;
 		int ordinal_9 = SourceVersion.RELEASE_9.ordinal();
 		int ordinal_latest = latest_tested - 9 + ordinal_9;