diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 308e3c8..6ab8318 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -10,7 +10,7 @@ variables:
   # E.g. BUILD_JOBS: build_debian_buster,build_ubuntu_bionic. This will include
   # arm builds, because build_debian_buster_arm matches build_debian_buster.
   # "BUILD_JOBS: none" won't build any build jobs, nor www.
-  BUILD_JOBS: build_alpine_319
+  BUILD_JOBS: build_alpine_318
   DOCKER_HOST: tcp://docker:2375
   DOCKER_TLS_CERTDIR: ""
 
diff --git a/builder/dockerfile.alpine_318.apk.build b/builder/dockerfile.alpine_318.apk.build
index 209e142..f55ac41 100644
--- a/builder/dockerfile.alpine_318.apk.build
+++ b/builder/dockerfile.alpine_318.apk.build
@@ -8,12 +8,12 @@ WORKDIR $HOME/kasmvncserver
 
 ARG KASMVNC_ALPINE_PRIVATE_KEY
 ARG KASMVNC_ALPINE_PUBLIC_KEY
-ENV APK_KEYS_DIR=/etc/apk/keys
-RUN echo -n "$KASMVNC_ALPINE_PRIVATE_KEY" > \
-  $APK_KEYS_DIR/kasmvnc_signing_key.rsa
-RUN echo -n "$KASMVNC_ALPINE_PUBLIC_KEY" > \
-  $APK_KEYS_DIR/kasmvnc_signing_key.rsa.pub
+
+ENV SCRIPTS_DIR=/tmp/scripts
+COPY builder/scripts $SCRIPTS_DIR
+RUN $SCRIPTS_DIR/install_alpine_signing_keys
 
 RUN useradd -m docker && echo "docker:docker" | chpasswd
+RUN echo 'docker ALL=(ALL) NOPASSWD: ALL' >> /etc/sudoers
 
 USER docker