diff --git a/telegraf/Dockerfile b/telegraf/Dockerfile
index 00fc313..a6ff4f4 100755
--- a/telegraf/Dockerfile
+++ b/telegraf/Dockerfile
@@ -33,7 +33,9 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
 
 ENV TELEGRAF_VERSION ${TELEGRAF_VERSION}
 RUN set -ex && \
-    mkdir ~/.gnupg; \
+    mkdir ~/.gnupg && \
+    chmod 600 ~/.gnupg/* && \
+    chmod 700 ~/.gnupg && \
     echo "disable-ipv6" >> ~/.gnupg/dirmngr.conf; \
     wget -q https://repos.influxdata.com/influxdata-archive_compat.key && \
     echo '393e8779c89ac8d958f81f942f9ad7fb82a25e133faddaf92e15b16e6ac9ce4c influxdata-archive_compat.key' | sha256sum -c &&     cat influxdata-archive_compat.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/influxdata-archive_compat.gpg > /dev/null && \