diff --git a/ci/images/ci-image-jdk11/Dockerfile b/ci/images/ci-image-jdk11/Dockerfile
index df7ace7e..e96e3dbd 100644
--- a/ci/images/ci-image-jdk11/Dockerfile
+++ b/ci/images/ci-image-jdk11/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal-20210416
+FROM ubuntu:focal-20210723
 
 ADD setup.sh /setup.sh
 ADD get-jdk-url.sh /get-jdk-url.sh
diff --git a/ci/images/ci-image-jdk16/Dockerfile b/ci/images/ci-image-jdk16/Dockerfile
index 7b573af5..20215d6a 100644
--- a/ci/images/ci-image-jdk16/Dockerfile
+++ b/ci/images/ci-image-jdk16/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal-20210416
+FROM ubuntu:focal-20210723
 
 ADD setup.sh /setup.sh
 ADD get-jdk-url.sh /get-jdk-url.sh
diff --git a/ci/images/ci-image/Dockerfile b/ci/images/ci-image/Dockerfile
index 66ee7fcd..20d113d0 100644
--- a/ci/images/ci-image/Dockerfile
+++ b/ci/images/ci-image/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:focal-20210416
+FROM ubuntu:focal-20210723
 
 ADD setup.sh /setup.sh
 ADD get-jdk-url.sh /get-jdk-url.sh