diff --git a/images/pulsar-functions-base-runner/Dockerfile b/images/pulsar-functions-base-runner/Dockerfile
index 768290f0b..811e4975b 100644
--- a/images/pulsar-functions-base-runner/Dockerfile
+++ b/images/pulsar-functions-base-runner/Dockerfile
@@ -1,13 +1,13 @@
 ARG PULSAR_IMAGE
 ARG PULSAR_IMAGE_TAG
 FROM ${PULSAR_IMAGE}:${PULSAR_IMAGE_TAG} as pulsar
-FROM ubuntu:24.04 as functions-runner
+FROM alpine:3.19 as functions-runner
 
 ENV GID=10001
 ENV UID=10000
 ENV USER=pulsar
-RUN groupadd -g $GID pulsar
-RUN useradd -u $UID -G pulsar -N -m $USER
+RUN addgroup -g $GID pulsar
+RUN adduser -u $UID -G pulsar -D -g '' $USER
 
 RUN mkdir -p /pulsar/bin/ \
     && mkdir -p /pulsar/lib/ \
@@ -28,30 +28,24 @@ RUN echo "VERSION_TAG=${VERSION_TAG}" && \
     VERSION_PATCH=$(echo $VERSION_TAG | cut -d. -f3) && \
     if [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 7 ]; then \
         echo "Pulsar version is 2.7, use java 1.8" && \
-        export JRE_PACKAGE_NAME=openjdk-8-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk8; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 8 ]; then \
         echo "Pulsar version is 2.8, use java 1.8" && \
-        export JRE_PACKAGE_NAME=openjdk-8-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk8; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 9 ]; then \
         echo "Pulsar version is 2.9, use java 11" && \
-        export JRE_PACKAGE_NAME=openjdk-11-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk11; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 10 ]; then \
         echo "Pulsar version is 2.10, use java 11" && \
-        export JRE_PACKAGE_NAME=openjdk-11-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk11; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 11 ]; then \
         echo "Pulsar version is 2.11, use java 17" && \
-        export JRE_PACKAGE_NAME=openjdk-17-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk11; \
     else \
         echo "Pulsar version is not in the list, use java 17 instead" && \
-        export JRE_PACKAGE_NAME=openjdk-17-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk17; \
     fi && \
-    apt-get update \
-         && apt-get -y dist-upgrade \
-         && apt-get -y install $JRE_PACKAGE_NAME \
-         && apt-get -y --purge autoremove \
-         && apt-get autoclean \
-         && apt-get clean \
-         && rm -rf /var/lib/apt/lists/*
+    apk update && apk add --no-cache $JRE_PACKAGE_NAME bash
 
 COPY --from=pulsar --chown=$UID:$GID /pulsar/conf /pulsar/conf
 COPY --from=pulsar --chown=$UID:$GID /pulsar/bin /pulsar/bin
diff --git a/images/pulsar-functions-base-runner/pulsarctl.Dockerfile b/images/pulsar-functions-base-runner/pulsarctl.Dockerfile
index b93092439..123cba403 100644
--- a/images/pulsar-functions-base-runner/pulsarctl.Dockerfile
+++ b/images/pulsar-functions-base-runner/pulsarctl.Dockerfile
@@ -1,13 +1,13 @@
 ARG PULSAR_IMAGE
 ARG PULSAR_IMAGE_TAG
 FROM ${PULSAR_IMAGE}:${PULSAR_IMAGE_TAG} as pulsar
-FROM ubuntu:24.04 as functions-runner
+FROM alpine:3.19 as functions-runner
 
 ENV GID=10001
 ENV UID=10000
 ENV USER=pulsar
-RUN groupadd -g $GID pulsar
-RUN useradd -u $UID -G pulsar -N -m $USER
+RUN addgroup -g $GID pulsar
+RUN adduser -u $UID -G pulsar -D -g '' $USER
 
 RUN mkdir -p /pulsar/bin/ \
     && mkdir -p /pulsar/lib/ \
@@ -19,13 +19,7 @@ RUN mkdir -p /pulsar/bin/ \
     && mkdir -p /pulsar/examples/ \
     && chown -R $UID:$GID /pulsar \
     && chmod -R g=u /pulsar \
-    && apt-get update \
-         && apt-get -y dist-upgrade \
-         && apt-get -y install wget \
-         && apt-get -y --purge autoremove \
-         && apt-get autoclean \
-         && apt-get clean \
-         && rm -rf /var/lib/apt/lists/* \
+    && apk update && apk add --no-cache wget bash \
          && wget https://github.com/streamnative/pulsarctl/releases/latest/download/pulsarctl-amd64-linux.tar.gz -P /pulsar/bin/ \
          && tar -xzf /pulsar/bin/pulsarctl-amd64-linux.tar.gz -C /pulsar/bin/ \
          && rm -rf /pulsar/bin/pulsarctl-amd64-linux.tar.gz \
diff --git a/images/pulsar-functions-java-runner/pulsarctl.Dockerfile b/images/pulsar-functions-java-runner/pulsarctl.Dockerfile
index f16a5dcb1..29992a90c 100644
--- a/images/pulsar-functions-java-runner/pulsarctl.Dockerfile
+++ b/images/pulsar-functions-java-runner/pulsarctl.Dockerfile
@@ -12,30 +12,24 @@ RUN echo "VERSION_TAG=${VERSION_TAG}" && \
     VERSION_PATCH=$(echo $VERSION_TAG | cut -d. -f3) && \
     if [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 7 ]; then \
         echo "Pulsar version is 2.7, use java 1.8" && \
-        export JRE_PACKAGE_NAME=openjdk-8-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk8; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 8 ]; then \
         echo "Pulsar version is 2.8, use java 1.8" && \
-        export JRE_PACKAGE_NAME=openjdk-8-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk8; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 9 ]; then \
         echo "Pulsar version is 2.9, use java 11" && \
-        export JRE_PACKAGE_NAME=openjdk-11-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk11; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 10 ]; then \
         echo "Pulsar version is 2.10, use java 11" && \
-        export JRE_PACKAGE_NAME=openjdk-11-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk11; \
     elif [ $VERSION_MAJOR -eq 2 ] && [ $VERSION_MINOR -eq 11 ]; then \
         echo "Pulsar version is 2.11, use java 17" && \
-        export JRE_PACKAGE_NAME=openjdk-17-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk17; \
     else \
         echo "Pulsar version is not in the list, use java 17 instead" && \
-        export JRE_PACKAGE_NAME=openjdk-17-jre-headless; \
+        export JRE_PACKAGE_NAME=openjdk17; \
     fi && \
-    apt-get update \
-         && apt-get -y dist-upgrade \
-         && apt-get -y install $JRE_PACKAGE_NAME \
-         && apt-get -y --purge autoremove \
-         && apt-get autoclean \
-         && apt-get clean \
-         && rm -rf /var/lib/apt/lists/*
+    apk update && apk add --no-cache $JRE_PACKAGE_NAME
 
 COPY --from=pulsar --chown=$UID:$GID /pulsar/conf /pulsar/conf
 COPY --from=pulsar --chown=$UID:$GID /pulsar/bin /pulsar/bin
diff --git a/images/pulsar-functions-python-runner/Dockerfile b/images/pulsar-functions-python-runner/Dockerfile
index 71424d2ce..f160602d9 100644
--- a/images/pulsar-functions-python-runner/Dockerfile
+++ b/images/pulsar-functions-python-runner/Dockerfile
@@ -19,23 +19,15 @@ COPY --from=pulsar --chown=$UID:$GID /pulsar/README /pulsar/cpp-clien* /tmp/puls
 RUN if [ -d "/tmp/pulsar/cpp-client" ]; then mv /tmp/pulsar/cpp-client /pulsar/cpp-client || true ; fi
 
 # Install some utilities
-RUN apt-get update \
-     && DEBIAN_FRONTEND=noninteractive apt-get install -y python3 python3-dev python3-setuptools python3-yaml python3-kazoo \
-                 libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev curl ca-certificates\
-     && apt-get clean autoclean && apt-get autoremove --yes && rm -rf /var/lib/apt/lists/* \
-     && mv /usr/lib/python3.12/EXTERNALLY-MANAGED  /usr/lib/python3.12/EXTERNALLY-MANAGED.old
+RUN apk update \
+     && apk add --no-cache python3 python3-dev tk-dev curl ca-certificates\
+     && mv /usr/lib/python3.11/EXTERNALLY-MANAGED  /usr/lib/python3.11/EXTERNALLY-MANAGED.old
 
 RUN mkdir -p /etc/pki/tls/certs && cp /etc/ssl/certs/ca-certificates.crt /etc/pki/tls/certs/ca-bundle.crt
 
 RUN curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
 RUN python3 get-pip.py
 
-RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 10
-
-RUN if [ -d "/pulsar/cpp-client" ]; then apt-get update \
-     && apt install -y /pulsar/cpp-client/*.deb \
-     && apt-get clean autoclean && apt-get autoremove --yes && rm -rf /var/lib/apt/lists/* ; fi
-
 WORKDIR /pulsar
 
 RUN if [ -f "/pulsar/bin/install-pulsar-client-37.sh" ]; then /pulsar/bin/install-pulsar-client-37.sh || true ; fi
diff --git a/images/pulsar-functions-python-runner/pulsarctl.Dockerfile b/images/pulsar-functions-python-runner/pulsarctl.Dockerfile
index bed5d5a92..24106d635 100644
--- a/images/pulsar-functions-python-runner/pulsarctl.Dockerfile
+++ b/images/pulsar-functions-python-runner/pulsarctl.Dockerfile
@@ -17,20 +17,13 @@ COPY --from=pulsar --chown=$UID:$GID /pulsar/README /pulsar/pulsar-clien* /pulsa
 # Below is a hacky way to copy /pulsar/cpp-client if exist in pulsar image
 COPY --from=pulsar --chown=$UID:$GID /pulsar/README /pulsar/cpp-clien* /pulsar/cpp-client/
 
-RUN apt-get update \
-     && DEBIAN_FRONTEND=noninteractive apt-get install -y python3 python3-dev python3-setuptools python3-yaml python3-kazoo \
-                 libncursesw5-dev libssl-dev libsqlite3-dev tk-dev libgdbm-dev libc6-dev libbz2-dev curl ca-certificates\
-     && apt-get clean autoclean && apt-get autoremove --yes && rm -rf /var/lib/apt/lists/* \
+RUN apk update \
+     && apk add --no-cache python3 python3-dev tk-dev curl ca-certificates\
      && mkdir -p /etc/pki/tls/certs && cp /etc/ssl/certs/ca-certificates.crt /etc/pki/tls/certs/ca-bundle.crt \
-     && update-alternatives --install /usr/bin/python python /usr/bin/python3 10 \
      && curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py \
-     && mv /usr/lib/python3.12/EXTERNALLY-MANAGED  /usr/lib/python3.12/EXTERNALLY-MANAGED.old \
+     && mv /usr/lib/python3.11/EXTERNALLY-MANAGED  /usr/lib/python3.11/EXTERNALLY-MANAGED.old \
      && python3 get-pip.py && pip3 install --upgrade pip
 
-RUN if [ -d "/pulsar/cpp-client" ]; then apt-get update \
-     && apt install -y /pulsar/cpp-client/*.deb || true \
-     && apt-get clean autoclean && apt-get autoremove --yes && rm -rf /var/lib/apt/lists/* ; fi
-
 RUN if [ -f "/pulsar/bin/install-pulsar-client-37.sh" ]; then /pulsar/bin/install-pulsar-client-37.sh || pip3 install 'pulsar-client[all]==3.5.0' ; fi
 RUN if [ -f "/pulsar/bin/install-pulsar-client.sh" ]; then /pulsar/bin/install-pulsar-client.sh || pip3 install 'pulsar-client[all]==3.5.0' ; fi
 
@@ -45,4 +38,4 @@ USER $USER
 # a temp solution from https://github.com/apache/pulsar/pull/15846 to fix python protobuf version error
 RUN pip3 install protobuf==3.20.1 --user
 # to make the python runner could print json logs
-RUN pip3 install python-json-logger --user
\ No newline at end of file
+RUN pip3 install python-json-logger --user