diff --git a/docker/testing/ubuntu2204_java_driver_testing.docker b/docker/testing/ubuntu2204_java_driver_testing.docker
index e9057c4..1bbc5e0 100644
--- a/docker/testing/ubuntu2204_java_driver_testing.docker
+++ b/docker/testing/ubuntu2204_java_driver_testing.docker
@@ -38,12 +38,14 @@ RUN export JABBA_HOME="$HOME/.jabba" && \
 RUN . /home/docker/.jabba/jabba.sh && jabba install openjdk@1.8.0-292
 RUN . /home/docker/.jabba/jabba.sh && jabba install openjdk@1.11.0-9
 RUN . /home/docker/.jabba/jabba.sh && jabba install openjdk@17
+RUN . /home/docker/.jabba/jabba.sh && jabba install openjdk@1.21.0
 
 ENV PATH="/home/docker/.jabba/bin:/home/docker/.local/bin:$PATH"
 
 RUN echo "export JAVA8_HOME=$(jabba which openjdk@1.8.0-292)" >> ~/env.txt && \
     echo "export JAVA11_HOME=$(jabba which openjdk@1.11.0-9)" >> ~/env.txt && \
     echo "export JAVA17_HOME=$(jabba which openjdk@17)" >> ~/env.txt && \
+    echo "export JAVA21_HOME=$(jabba which openjdk@1.21.0)" >> ~/env.txt && \
     echo "export JAVA_HOME=$(jabba which openjdk@1.8.0-292)" >> ~/env.txt && \
     echo ". $HOME/.jabba/jabba.sh" >> ~/env.txt && \
     echo "jabba use openjdk@1.8.0-292" >> ~/env.txt