diff --git a/imagefiles/install-gosu-binary.sh b/imagefiles/install-gosu-binary.sh
index 76f1477..bb01403 100755
--- a/imagefiles/install-gosu-binary.sh
+++ b/imagefiles/install-gosu-binary.sh
@@ -56,6 +56,7 @@ url_key="https://github.com/tianon/gosu/releases/download/${GOSU_VERSION}/gosu-$
 # download and verify the signature
 export GNUPGHOME="$(mktemp -d)"
 
+gpg --keyserver hkps://keys.openpgp.org --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 || \
 gpg --keyserver hkp://pool.sks-keyservers.net:80 --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 || \
 gpg --keyserver hkp://pgp.key-server.io:80 --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 || \
 gpg --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4