diff --git a/Dockerfile.dbg b/Dockerfile.dbg
index f8976338..89a73bb7 100644
--- a/Dockerfile.dbg
+++ b/Dockerfile.dbg
@@ -45,12 +45,12 @@ RUN sed -i '/stretch-updates/d' /etc/apt/sources.list
 RUN mkdir ~/.gnupg
 RUN echo "disable-ipv6" >> ~/.gnupg/dirmngr.conf
 
-RUN set -x \
-  && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 467B942D3A79BD29
+# RUN set -x \
+#  && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 467B942D3A79BD29
 
 RUN set -x \
   && apt-get update \
-  && apt-get install -y --no-install-recommends ca-certificates \
+  && apt-get install -y --no-install-recommends ca-certificates --allow-unauthenticated \
   && rm -rf /var/lib/apt/lists/* /usr/share/doc /usr/share/man /tmp/*
 
 COPY --from=0 restic /bin/restic
diff --git a/Dockerfile.in b/Dockerfile.in
index 457bebc2..7f3896cd 100644
--- a/Dockerfile.in
+++ b/Dockerfile.in
@@ -45,12 +45,12 @@ RUN sed -i '/stretch-updates/d' /etc/apt/sources.list
 RUN mkdir ~/.gnupg
 RUN echo "disable-ipv6" >> ~/.gnupg/dirmngr.conf
 
-RUN set -x \
-  && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 467B942D3A79BD29
+# RUN set -x \
+#   && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 467B942D3A79BD29
 
 RUN set -x \
   && apt-get update \
-  && apt-get install -y --no-install-recommends ca-certificates \
+  && apt-get install -y --no-install-recommends ca-certificates --allow-unauthenticated \
   && rm -rf /var/lib/apt/lists/* /usr/share/doc /usr/share/man /tmp/*
 
 COPY --from=0 /restic /bin/restic