diff --git a/data/Dockerfiles/dovecot/Dockerfile b/data/Dockerfiles/dovecot/Dockerfile
index 44cae1af..1fc40009 100644
--- a/data/Dockerfiles/dovecot/Dockerfile
+++ b/data/Dockerfiles/dovecot/Dockerfile
@@ -2,7 +2,7 @@ FROM debian:buster-slim
 LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 ARG DEBIAN_FRONTEND=noninteractive
-ARG DOVECOT=2.3.16
+ARG DOVECOT=2.3.17
 ENV LC_ALL C
 ENV GOSU_VERSION 1.12