diff --git a/Dockerfile b/Dockerfile
index 8192539..f595704 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -12,6 +12,10 @@ COPY tcpping /defaults/
 
 RUN \
  echo "**** install packages ****" && \
+ if [ -z ${SMOKEPING_VERSION+x} ]; then \
+	SMOKEPING_VERSION=$(curl -sL "http://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz" | tar -xz -C /tmp \
+	&& awk '/^P:smokeping$/,/V:/' /tmp/APKINDEX | sed -n 2p | sed 's/^V://'); \
+ fi && \
  apk add --no-cache \
 	apache2 \
 	apache2-ctl \
@@ -22,7 +26,7 @@ RUN \
 	curl \
 	font-noto-cjk \
 	openssh-client \
-	smokeping \
+	smokeping==${SMOKEPING_VERSION} \
 	ssmtp \
 	sudo \
 	tcptraceroute \
diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index d66521a..490fee4 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -12,6 +12,10 @@ COPY tcpping /defaults/
 
 RUN \
  echo "**** install packages ****" && \
+ if [ -z ${SMOKEPING_VERSION+x} ]; then \
+	SMOKEPING_VERSION=$(curl -sL "http://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz" | tar -xz -C /tmp \
+	&& awk '/^P:smokeping$/,/V:/' /tmp/APKINDEX | sed -n 2p | sed 's/^V://'); \
+ fi && \
  apk add --no-cache \
 	apache2 \
 	apache2-ctl \
@@ -22,7 +26,7 @@ RUN \
 	curl \
 	font-noto-cjk \
 	openssh-client \
-	smokeping \
+	smokeping==${SMOKEPING_VERSION} \
 	ssmtp \
 	sudo \
 	tcptraceroute \
diff --git a/Dockerfile.armhf b/Dockerfile.armhf
index be9f85b..9e6313e 100644
--- a/Dockerfile.armhf
+++ b/Dockerfile.armhf
@@ -12,6 +12,10 @@ COPY tcpping /defaults/
 
 RUN \
  echo "**** install packages ****" && \
+ if [ -z ${SMOKEPING_VERSION+x} ]; then \
+	SMOKEPING_VERSION=$(curl -sL "http://dl-cdn.alpinelinux.org/alpine/v3.13/main/x86_64/APKINDEX.tar.gz" | tar -xz -C /tmp \
+	&& awk '/^P:smokeping$/,/V:/' /tmp/APKINDEX | sed -n 2p | sed 's/^V://'); \
+ fi && \
  apk add --no-cache \
 	apache2 \
 	apache2-ctl \
@@ -22,7 +26,7 @@ RUN \
 	curl \
 	font-noto-cjk \
 	openssh-client \
-	smokeping \
+	smokeping==${SMOKEPING_VERSION} \
 	ssmtp \
 	sudo \
 	tcptraceroute \
diff --git a/jenkins-vars.yml b/jenkins-vars.yml
index fd2cfe4..aed843c 100644
--- a/jenkins-vars.yml
+++ b/jenkins-vars.yml
@@ -2,7 +2,7 @@
 
 # jenkins variables
 project_name: docker-smokeping
-external_type: os
+external_type: alpine_repo
 release_type: stable
 release_tag: latest
 ls_branch: master
@@ -15,6 +15,9 @@ repo_vars:
   - DEV_DOCKERHUB_IMAGE = 'lsiodev/smokeping'
   - PR_DOCKERHUB_IMAGE = 'lspipepr/smokeping'
   - DIST_IMAGE = 'alpine'
+  - DIST_TAG = '3.13'
+  - DIST_REPO = 'http://nl.alpinelinux.org/alpine/v3.13/main/'
+  - DIST_REPO_PACKAGES = 'smokeping'
   - MULTIARCH='true'
   - CI='true'
   - CI_WEB='true'