diff --git a/1.5/alpine3.13/Dockerfile b/1.5/alpine3.13/Dockerfile
new file mode 100644
index 0000000..28ee660
--- /dev/null
+++ b/1.5/alpine3.13/Dockerfile
@@ -0,0 +1,48 @@
+FROM alpine:3.13
+
+ENV JULIA_PATH /usr/local/julia
+ENV PATH $JULIA_PATH/bin:$PATH
+
+# https://julialang.org/juliareleases.asc
+# Julia (Binary signing key) <buildbot@julialang.org>
+ENV JULIA_GPG 3673DF529D9049477F76B37566E3C7DC03D6E495
+
+# https://julialang.org/downloads/
+ENV JULIA_VERSION 1.5.3
+
+RUN set -eux; \
+	\
+	apk add --no-cache --virtual .fetch-deps gnupg; \
+	\
+# https://julialang.org/downloads/#julia-command-line-version
+# https://julialang-s3.julialang.org/bin/checksums/julia-1.5.3.sha256
+# this "case" statement is generated via "update.sh"
+	apkArch="$(apk --print-arch)"; \
+	case "$apkArch" in \
+# amd64
+		x86_64) tarArch='x86_64'; dirArch='x64'; sha256='2faf4ebe3b5fa1bbee853655ef7c292b457e80d3fca1af1c8d3f179286b27da6' ;; \
+		*) echo >&2 "error: current architecture ($apkArch) does not have a corresponding Julia binary release"; exit 1 ;; \
+	esac; \
+	\
+	folder="$(echo "$JULIA_VERSION" | cut -d. -f1-2)"; \
+	wget -O julia.tar.gz.asc "https://julialang-s3.julialang.org/bin/musl/${dirArch}/${folder}/julia-${JULIA_VERSION}-musl-${tarArch}.tar.gz.asc"; \
+	wget -O julia.tar.gz     "https://julialang-s3.julialang.org/bin/musl/${dirArch}/${folder}/julia-${JULIA_VERSION}-musl-${tarArch}.tar.gz"; \
+	\
+	echo "${sha256} *julia.tar.gz" | sha256sum -c -; \
+	\
+	export GNUPGHOME="$(mktemp -d)"; \
+	gpg --batch --keyserver ha.pool.sks-keyservers.net --recv-keys "$JULIA_GPG"; \
+	gpg --batch --verify julia.tar.gz.asc julia.tar.gz; \
+	command -v gpgconf > /dev/null && gpgconf --kill all; \
+	rm -rf "$GNUPGHOME" julia.tar.gz.asc; \
+	\
+	mkdir "$JULIA_PATH"; \
+	tar -xzf julia.tar.gz -C "$JULIA_PATH" --strip-components 1; \
+	rm julia.tar.gz; \
+	\
+	apk del --no-network .fetch-deps; \
+	\
+# smoke test
+	julia --version
+
+CMD ["julia"]
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index 8281303..b2abfc9 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -5,7 +5,7 @@ declare -A aliases=(
 	[1.5]='1 latest'
 )
 defaultDebianVariant='buster'
-defaultAlpineVariant='alpine3.12'
+defaultAlpineVariant='alpine3.13'
 
 self="$(basename "$BASH_SOURCE")"
 cd "$(dirname "$(readlink -f "$BASH_SOURCE")")"
@@ -90,7 +90,7 @@ join() {
 for version in "${versions[@]}"; do
 	for v in \
 		{buster,stretch} \
-		alpine3.12 \
+		alpine{3.13,3.12} \
 		windows/windowsservercore-{1809,ltsc2016} \
 	; do
 		dir="$version/$v"
diff --git a/update.sh b/update.sh
index cf2c0db..a11e150 100755
--- a/update.sh
+++ b/update.sh
@@ -65,7 +65,7 @@ for version in "${versions[@]}"; do
 
 	for v in \
 		windows/windowsservercore-{ltsc2016,1809} \
-		alpine3.12 \
+		alpine{3.13,3.12} \
 		{stretch,buster} \
 	; do
 		dir="$version/$v"