diff --git a/.ci/matrix-runtime-javas.yml b/.ci/matrix-runtime-javas.yml
index 9e2422d950931..4a0065b27afd4 100644
--- a/.ci/matrix-runtime-javas.yml
+++ b/.ci/matrix-runtime-javas.yml
@@ -9,6 +9,7 @@ ES_RUNTIME_JAVA:
   - java11
   - openjdk13
   - openjdk14
+  - openjdk15
   - zulu11
   - corretto11
   - adoptopenjdk11