diff --git a/Dockerfile b/Dockerfile
index b3fa8b4..1cd747d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,15 +2,19 @@
 FROM debian:12.8-slim
 
 # compare https://kubernetes.io/docs/tasks/tools/install-kubectl-linux/
+
+# https://stackoverflow.com/a/69684246
+SHELL ["/bin/bash", "-o", "pipefail", "-c"]
+
 RUN apt-get update && \
   export DEBIAN_FRONTEND=noninteractive && \
   apt-get install --no-install-recommends -y git nodejs gpg npm dnsutils \
-  apt-transport-https ca-certificates curl gnupg # packages in this line required for kubectl && \
+  apt-transport-https ca-certificates curl gnupg && \
   curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.32/deb/Release.key | gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg && \
   chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg && \
   echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.32/deb/ /' | tee /etc/apt/sources.list.d/kubernetes.list && \
   chmod 644 /etc/apt/sources.list.d/kubernetes.list && \
-  apt-get update && apt-get install -y kubectl && \
+  apt-get update && apt-get install -y --no-install-recommends kubectl && \
   apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
 
 # Copies your code file from your action repository to the filesystem path `/` of the container