diff --git a/Dockerfile b/Dockerfile
index 39b4619..da9320f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,10 +18,10 @@ RUN apk --no-cache add \
     inotify-tools-dev
 
 RUN mkdir /tmp/dovecot
-RUN wget -qO- https://www.dovecot.org/releases/2.3/dovecot-2.3.0.tar.gz | tar -xz -C /tmp/dovecot --strip 2
+RUN wget -qO- https://www.dovecot.org/releases/2.3/dovecot-2.3.4.tar.gz | tar -xz -C /tmp/dovecot --strip 1
 
 RUN mkdir /tmp/pigeonhole
-RUN wget -qO- https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.0.1.tar.gz | tar -xz -C /tmp/pigeonhole --strip 1
+RUN wget -qO- https://pigeonhole.dovecot.org/releases/2.3/dovecot-2.3-pigeonhole-0.5.4.tar.gz | tar -xz -C /tmp/pigeonhole --strip 1
 
 RUN cd /tmp/dovecot && \
     ./configure --prefix '' \