diff --git a/.github/workflows/external_trigger.yml b/.github/workflows/external_trigger.yml
index 96490f4..07aabf2 100755
--- a/.github/workflows/external_trigger.yml
+++ b/.github/workflows/external_trigger.yml
@@ -18,7 +18,7 @@ jobs:
           fi
           echo "**** External trigger running off of master branch. To disable this trigger, set a Github secret named \"PAUSE_EXTERNAL_TRIGGER_TRANSMISSION_MASTER\". ****"
           echo "**** Retrieving external version ****"
-          EXT_RELEASE=$(curl -sL "http://nl.alpinelinux.org/alpine/v3.13/community/x86_64/APKINDEX.tar.gz" | tar -xz -C /tmp \
+          EXT_RELEASE=$(curl -sL "http://nl.alpinelinux.org/alpine/v3.15/community/x86_64/APKINDEX.tar.gz" | tar -xz -C /tmp \
             && awk '/^P:'"transmission-daemon"'$/,/V:/' /tmp/APKINDEX | sed -n 2p | sed 's/^V://')
           if [ -z "${EXT_RELEASE}" ] || [ "${EXT_RELEASE}" == "null" ]; then
             echo "**** Can't retrieve external version, exiting ****"
diff --git a/Jenkinsfile b/Jenkinsfile
index 14e47f8..47d974c 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -25,8 +25,8 @@ pipeline {
     DEV_DOCKERHUB_IMAGE = 'lsiodev/transmission'
     PR_DOCKERHUB_IMAGE = 'lspipepr/transmission'
     DIST_IMAGE = 'alpine'
-    DIST_TAG = '3.13'
-    DIST_REPO = 'http://nl.alpinelinux.org/alpine/v3.13/community/'
+    DIST_TAG = '3.15'
+    DIST_REPO = 'http://nl.alpinelinux.org/alpine/v3.15/community/'
     DIST_REPO_PACKAGES = 'transmission-daemon'
     MULTIARCH='true'
     CI='true'
diff --git a/jenkins-vars.yml b/jenkins-vars.yml
index 5fee459..1387b8f 100644
--- a/jenkins-vars.yml
+++ b/jenkins-vars.yml
@@ -15,8 +15,8 @@ repo_vars:
   - DEV_DOCKERHUB_IMAGE = 'lsiodev/transmission'
   - PR_DOCKERHUB_IMAGE = 'lspipepr/transmission'
   - DIST_IMAGE = 'alpine'
-  - DIST_TAG = '3.13'
-  - DIST_REPO = 'http://nl.alpinelinux.org/alpine/v3.13/community/'
+  - DIST_TAG = '3.15'
+  - DIST_REPO = 'http://nl.alpinelinux.org/alpine/v3.15/community/'
   - DIST_REPO_PACKAGES = 'transmission-daemon'
   - MULTIARCH='true'
   - CI='true'