diff --git a/Dockerfile b/Dockerfile
index 4b6a3ca..7a3c991 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,8 +22,8 @@ RUN export DEBIAN_FRONTEND=noninteractive && \
     curl -LsS https://downloads.mariadb.com/MariaDB/mariadb_repo_setup | bash -s -- --mariadb-server-version=10.5 && \
     apt-get -qqy install -t stretch-backports --no-install-recommends bash openjdk-8-jre-headless ca-certificates-java supervisor procps sudo openssh-client mariadb-server mariadb-client postgresql-9.6 postgresql-client-9.6 pwgen git uuid-runtime parallel jq && \
     cd /tmp/ && \
-    curl -Lo /tmp/rundeck.deb https://packagecloud.io/pagerduty/rundeck/packages/any/any/rundeck_3.4.8.20211214-1_all.deb/download.deb && \
-    echo '62150933fe82485e986dd02f10bf77027ed5fb373a80324b7d37a8fcad0f5427  rundeck.deb' > /tmp/rundeck.sig && \
+    curl -Lo /tmp/rundeck.deb https://packagecloud.io/pagerduty/rundeck/packages/any/any/rundeck_3.4.9.20211221-1_all.deb/download.deb && \
+    echo '62ff6ed64584e685a51cf4fcbf6c7e886086f3ea6f68e12aceb9485769bbff86  rundeck.deb' > /tmp/rundeck.sig && \
     shasum -a256 -c /tmp/rundeck.sig && \
     curl -Lo /tmp/rundeck-cli.deb https://packagecloud.io/pagerduty/rundeck/packages/any/any/rundeck-cli_1.3.10-1_all.deb/download.deb && \
     echo 'e9f6fb2cd051b32b452a055ce5aa7e354b21e011a9c00c76e3d624c2338a3736  rundeck-cli.deb' > /tmp/rundeck-cli.sig && \