diff --git a/Makefile b/Makefile
index ad82d44..f9d222e 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 DOCKER_IMAGE_NAME = cubetiq/calpine-os-linux
 DOCKER_IMAGE_SIZE = $(shell docker images --format "{{.Repository}} {{.Size}}" | grep $(DOCKER_IMAGE_NAME) | cut -d\   -f2)
-DOCKER_IMAGE=${DOCKER_IMAGE_NAME}:3.13
+DOCKER_IMAGE=${DOCKER_IMAGE_NAME}:3.15
 
 build:
 	./src/build.sh
diff --git a/src/build.sh b/src/build.sh
index 0597889..8b7abec 100755
--- a/src/build.sh
+++ b/src/build.sh
@@ -10,7 +10,7 @@ set -ex
 # Default args
 DOCKER_IMAGE_NAME=${DOCKER_IMAGE_NAME:-calpine-os-linux}
 DOCKER_USERNAME="${DOCKER_USERNAME:-cubetiq}"
-ALPINE_VERSION="${ALPINE_VERSION:-3.13}"
+ALPINE_VERSION="${ALPINE_VERSION:-3.15}"
 PACKAGES="apk-tools ca-certificates ssl_client"
 
 MKROOTFS="/tmp/alpine-make-rootfs"