diff --git a/Dockerfile b/Dockerfile
index 687c24d3cd357872a15fedcbcbff2d1812bc1931..650d674c253401a8efe06cacd6a33efc8b6bb17d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,8 @@
 FROM golang:1.19.0-buster as builder
 WORKDIR /
 RUN apt-get update && apt-get install unzip
-RUN wget https://github.com/protocolbuffers/protobuf/releases/download/v3.19.4/protoc-3.19.4-linux-x86_64.zip
-RUN unzip protoc-3.19.4-linux-x86_64.zip -d /
+RUN wget https://github.com/protocolbuffers/protobuf/releases/download/v3.20.3/protoc-3.20.3-linux-x86_64.zip
+RUN unzip protoc-3.20.3-linux-x86_64.zip -d /
 WORKDIR /build
 COPY api/ api
 COPY pkg/ pkg
diff --git a/build_and_publish.sh b/build_and_publish.sh
index 123d23dd1da3509fe708d42afa676e2d65cef1fa..b3efb8ee3b2262f7177de6c7f21bd1036df618a5 100755
--- a/build_and_publish.sh
+++ b/build_and_publish.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-TAG=1.5.1
+TAG=1.5.3
 WHAT=janitor
 sudo docker build --rm -t artifactory.software.geant.org/nmaas-docker-local/nmaas-$WHAT:$TAG .
 sudo docker push artifactory.software.geant.org/nmaas-docker-local/nmaas-$WHAT:$TAG
diff --git a/go.mod b/go.mod
index 4fe1cf963de826bbaa6ac4af2c5ff5e11de939ba..b2ed23241a4c511d83714be087e6e346430c6955 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,12 @@
 module bitbucket.software.geant.org/projects/NMAAS/repos/nmaas-janitor
 
 require (
-	github.com/golang/protobuf v1.5.2
+	github.com/golang/protobuf v1.5.3
 	github.com/johnaoss/htpasswd v0.0.0-20190120213328-a0cc59f788da
-	github.com/xanzy/go-gitlab v0.73.1
-	golang.org/x/net v0.0.0-20220907135653-1e95f45603a7
-	google.golang.org/grpc v1.49.0
-	google.golang.org/protobuf v1.28.1
+	github.com/xanzy/go-gitlab v0.86.0
+	golang.org/x/net v0.8.0
+	google.golang.org/grpc v1.55.0
+	google.golang.org/protobuf v1.29.1
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/api v0.20.15
 	k8s.io/apimachinery v0.20.15