diff --git a/dockerfiles/base.dockerfile b/dockerfiles/base.dockerfile
index 69915db..c60950e 100644
--- a/dockerfiles/base.dockerfile
+++ b/dockerfiles/base.dockerfile
@@ -19,6 +19,6 @@ LABEL org.opencontainers.image.created="${IMAGE_CREATED}" \
     org.opencontainers.image.description="MouseSoft docker images used by act_runner to run workflows."
 
 RUN apt-get update --allow-insecure-repositories && \
-    apt-get install -y build-essential debhelper dh-exec dpkg-dev dput-ng \
-    fakeroot gawk locales sed && \
+    apt-get install -y --allow-unauthenticated build-essential debhelper dh-exec \
+    dpkg-dev dput-ng fakeroot gawk locales sed && \
     rm -rf /var/lib/apt/lists/*
diff --git a/dockerfiles/doc.dockerfile b/dockerfiles/doc.dockerfile
index fe573fe..6cea11f 100644
--- a/dockerfiles/doc.dockerfile
+++ b/dockerfiles/doc.dockerfile
@@ -32,8 +32,9 @@ RUN apt-get update --allow-insecure-repositories && \
 COPY etc /etc
 
 RUN apt-get update --allow-insecure-repositories && \
-    apt-get install -y asciidoctor curl graphviz libgbm1 libgtk-3-0 libnotify4 \
-    libsecret-1-0 libxss1 locales make plantuml rubygems xdg-utils xvfb xz-utils && \
+    apt-get install -y --allow-unauthenticated asciidoctor curl graphviz libgbm1 \
+    libgtk-3-0 libnotify4 libsecret-1-0 libxss1 locales make plantuml rubygems \
+    xdg-utils xvfb xz-utils && \
     gem install asciidoctor-diagram && \
     gem install asciidoctor-pdf && \
     gem install rouge && \
diff --git a/dockerfiles/python.dockerfile b/dockerfiles/python.dockerfile
index 4566f1b..1bf063b 100644
--- a/dockerfiles/python.dockerfile
+++ b/dockerfiles/python.dockerfile
@@ -19,5 +19,6 @@ LABEL org.opencontainers.image.created="${IMAGE_CREATED}" \
     org.opencontainers.image.description="MouseSoft docker images used by act_runner to run workflows."
 
 RUN apt-get update --allow-insecure-repositories && \
-    apt-get install -y dh-python libvirt-dev python3-all python3-dev python3-setuptools && \
+    apt-get install -y --allow-unauthenticated dh-python libvirt-dev python3-all \
+    python3-dev python3-setuptools && \
     rm -rf /var/lib/apt/lists/*