diff --git a/motsognir/Dockerfile b/motsognir/Dockerfile
index 04c7269..9ddd1bf 100644
--- a/motsognir/Dockerfile
+++ b/motsognir/Dockerfile
@@ -1,11 +1,12 @@
 FROM debian:latest
 LABEL maintainer="dragonchaser <crichter@suse.de>"
-ENV TARBALL=motsognir-1.0.12.tar.xz
+ENV VERSION=1.0.13
+ENV TARBALL="motsognir-${VERSION}.tar.xz"
 EXPOSE 70
 RUN apt-get update \
   && apt-get -y install wget build-essential rsyslog
 WORKDIR /build
-RUN wget "https://downloads.sourceforge.net/project/motsognir/v1.0.12/${TARBALL}" \
+RUN wget "https://downloads.sourceforge.net/project/motsognir/v${VERSION}/${TARBALL}" \
   && tar xfv "${TARBALL}"
 RUN cd $(echo "${TARBALL}" | sed -e "s/.tar.xz//g") && make all && make install
 RUN apt-get -y purge wget build-essential
diff --git a/motsognir/Dockerfile.arm32v7 b/motsognir/Dockerfile.arm32v7
index 75bdb30..709b99d 100644
--- a/motsognir/Dockerfile.arm32v7
+++ b/motsognir/Dockerfile.arm32v7
@@ -1,11 +1,12 @@
 FROM arm32v7/debian:buster-slim
 COPY qemu-arm-static /usr/bin
-ENV TARBALL=motsognir-1.0.12.tar.xz
+ENV VERSION=1.0.13
+ENV TARBALL="motsognir-${VERSION}.tar.xz"
 EXPOSE 70
 RUN apt-get update \
   && apt-get -y install wget build-essential rsyslog
 WORKDIR /build
-RUN wget "https://downloads.sourceforge.net/project/motsognir/v1.0.12/${TARBALL}" \
+RUN wget "https://downloads.sourceforge.net/project/motsognir/v${VERSION}/${TARBALL}" \
   && tar xfv "${TARBALL}"
 RUN cd $(echo "${TARBALL}" | sed -e "s/.tar.xz//g") && make all && make install
 RUN apt-get -y purge wget build-essential