change base image to (#135)

diff --git a/core/java8/CHANGELOG.md b/core/java8/CHANGELOG.md
index 8bf6385..598db88 100644
--- a/core/java8/CHANGELOG.md
+++ b/core/java8/CHANGELOG.md
@@ -18,6 +18,9 @@
 -->
 
 # Java 8 OpenWhisk Runtime Container
+# next release
+ - use `ibm-semeru-runtimes:open-8u332-b09-jdk-focal` as baseimage
+
 # 1.19.0
  - Use adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u332-b09_openj9-0.32.0
 
diff --git a/core/java8/Dockerfile b/core/java8/Dockerfile
index c77baba..83a3051 100644
--- a/core/java8/Dockerfile
+++ b/core/java8/Dockerfile
@@ -16,7 +16,7 @@
 #
 
 # Use AdoptOpenJDK's JDK8, OpenJ9, ubuntu
-FROM adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u332-b09_openj9-0.32.0
+FROM ibm-semeru-runtimes:open-8u332-b09-jdk-focal
 
 RUN rm -rf /var/lib/apt/lists/* \
     && apt-get clean \
diff --git a/core/java8actionloop/CHANGELOG.md b/core/java8actionloop/CHANGELOG.md
index b82ffca..14821a8 100644
--- a/core/java8actionloop/CHANGELOG.md
+++ b/core/java8actionloop/CHANGELOG.md
@@ -18,6 +18,9 @@
 -->
 
 # Java 8 OpenWhisk Runtime Container
+# next release
+ - use `ibm-semeru-runtimes:open-8u332-b09-jdk-focal` as baseimage
+
 # 1.19.0
  - Use adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u332-b09_openj9-0.32.0
 
diff --git a/core/java8actionloop/Dockerfile b/core/java8actionloop/Dockerfile
index 81f1e7f..102acf3 100644
--- a/core/java8actionloop/Dockerfile
+++ b/core/java8actionloop/Dockerfile
@@ -34,7 +34,7 @@
   && GO111MODULE=on go build -o /bin/proxy
 
 # Use AdoptOpenJDK's JDK8, OpenJ9, ubuntu
-FROM adoptopenjdk/openjdk8-openj9:x86_64-ubuntu-jdk8u332-b09_openj9-0.32.0
+FROM ibm-semeru-runtimes:open-8u332-b09-jdk-focal
 
 # select the builder to use
 ARG GO_PROXY_BUILD_FROM=release