diff --git a/Dockerfile b/Dockerfile
index 8e6ad3e8..b0e07a37 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,7 +7,7 @@ ARG DEBIAN_FRONTEND=noninteractive
 ARG FAIL2BAN_DEB_URL=https://github.com/fail2ban/fail2ban/releases/download/0.11.2/fail2ban_0.11.2-1.upstream1_all.deb
 ARG FAIL2BAN_DEB_ASC_URL=${FAIL2BAN_DEB_URL}.asc
 ARG FAIL2BAN_GPG_PUBLIC_KEY_ID=0x683BF1BEBD0A882C
-ARG FAIL2BAN_GPG_PUBLIC_KEY_SERVER=keys.gnupg.net
+ARG FAIL2BAN_GPG_PUBLIC_KEY_SERVER=hkps://keyserver.ubuntu.com
 ARG FAIL2BAN_GPG_FINGERPRINT="8738 559E 26F6 71DF 9E2C  6D9E 683B F1BE BD0A 882C"
 
 LABEL org.opencontainers.image.version=${VCS_VER}