diff --git a/Dockerfile b/Dockerfile
index 531c9fb..aa0e54b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,7 +14,7 @@ RUN set -xe;\
 
 FROM bootstrapped as toolbuilder
 ENV GOSU_VERSION="1.12"
-ENV DUMB_INIT_VERSION="1.2.2"
+ENV DUMB_INIT_VERSION="1.2.3"
 RUN set -xe;\
   apt-get update &&\
   apt-get install -y git golang &&\
@@ -34,7 +34,7 @@ RUN set -xe;\
 FROM bootstrapped
 ARG DATE
 ENV GOSU_VERSION="1.12"
-ENV DUMB_INIT_VERSION="1.2.2"
+ENV DUMB_INIT_VERSION="1.2.3"
 COPY --from=toolbuilder /build/build /usr/local/sbin/gosu
 COPY --from=toolbuilder /dumb-init /usr/local/sbin/dumb-init
 COPY apt-install /bin/apt-install