diff --git a/data/Dockerfiles/dovecot/Dockerfile b/data/Dockerfiles/dovecot/Dockerfile
index 54ae995e..fc84459c 100644
--- a/data/Dockerfiles/dovecot/Dockerfile
+++ b/data/Dockerfiles/dovecot/Dockerfile
@@ -3,8 +3,8 @@ LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 ARG DEBIAN_FRONTEND=noninteractive
 ENV LC_ALL C
-ENV DOVECOT_VERSION 2.2.30.2
-ENV PIGEONHOLE_VERSION 0.4.18
+ENV DOVECOT_VERSION 2.2.31
+ENV PIGEONHOLE_VERSION 0.4.19
 
 RUN apt-get update && apt-get -y install \
 	automake \