diff --git a/dockerfiles/alpine.Dockerfile b/dockerfiles/alpine.Dockerfile
index 05bc863..b81e721 100644
--- a/dockerfiles/alpine.Dockerfile
+++ b/dockerfiles/alpine.Dockerfile
@@ -40,10 +40,9 @@ FROM base
 
 ENV PORT=4567
 
-RUN <<EOT
-  addgroup --system --gid 666 kubernaut
+RUN \
+  addgroup --system --gid 666 kubernaut; \
   adduser --system --uid 666 --ingroup kubernaut --shell /bin/bash --disabled-password kubernaut
-EOT
 
 COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
 COPY --from=build /kubernaut /kubernaut
diff --git a/dockerfiles/bookworm.Dockerfile b/dockerfiles/bookworm.Dockerfile
index cf291bc..f7e1fcb 100644
--- a/dockerfiles/bookworm.Dockerfile
+++ b/dockerfiles/bookworm.Dockerfile
@@ -48,10 +48,9 @@ FROM base
 
 ENV PORT=4567
 
-RUN <<EOT
-  groupadd --system --gid 666 kubernaut
+RUN \
+  groupadd --system --gid 666 kubernaut; \
   useradd --system --uid 666 --gid kubernaut --create-home --shell /bin/bash kubernaut
-EOT
 
 COPY --from=build "${BUNDLE_PATH}" "${BUNDLE_PATH}"
 COPY --from=build /kubernaut /kubernaut