diff --git a/.ci/matrix-build-javas.yml b/.ci/matrix-build-javas.yml
index debb074fce1cb..795e2e81f5f92 100644
--- a/.ci/matrix-build-javas.yml
+++ b/.ci/matrix-build-javas.yml
@@ -7,3 +7,4 @@
 
 ES_BUILD_JAVA:
   - java11
+  - openjdk12
diff --git a/.ci/matrix-runtime-javas.yml b/.ci/matrix-runtime-javas.yml
index cb7757aba6079..0cea9c939e149 100644
--- a/.ci/matrix-runtime-javas.yml
+++ b/.ci/matrix-runtime-javas.yml
@@ -9,5 +9,6 @@ ES_RUNTIME_JAVA:
   - java8
   - java8fips
   - java11
+  - openjdk12
   - zulu8
   - zulu11