diff --git a/images/api-manager-jenkins-swarm-agent/Dockerfile b/images/api-manager-jenkins-swarm-agent/Dockerfile
index ec8cfab02f9fd4e94a668b775dbe9587dd1786d5..24a97a676ef8d2ea9c28c686bfc53d33d365e04e 100644
--- a/images/api-manager-jenkins-swarm-agent/Dockerfile
+++ b/images/api-manager-jenkins-swarm-agent/Dockerfile
@@ -1,4 +1,4 @@
-FROM vfarcic/jenkins-swarm-agent
+FROM vfarcic/jenkins-swarm-agent:17.10.07-4
 
 USER root
 RUN apk --update add sudo && \
diff --git a/images/documentation-jenkins-swarm-agent/Dockerfile b/images/documentation-jenkins-swarm-agent/Dockerfile
index 5f7a1b733e1880b612794a7c2d486620e648f62d..171143c3778068e5cc101c49c42701a26af6b878 100644
--- a/images/documentation-jenkins-swarm-agent/Dockerfile
+++ b/images/documentation-jenkins-swarm-agent/Dockerfile
@@ -1,4 +1,4 @@
-FROM vfarcic/jenkins-swarm-agent
+FROM vfarcic/jenkins-swarm-agent:17.10.07-4
 
 USER root
 RUN apk -v --update add ruby=2.4.1-r3 nodejs=6.10.3-r1 ruby-bundler=1.15.0-r0
diff --git a/images/proxy/Dockerfile b/images/proxy/Dockerfile
index 4afc4a8395a52215f9f3c35361ce4fca5cbacd77..575e029dc8aef2f3d0f552fe0e33f4e74f681900 100644
--- a/images/proxy/Dockerfile
+++ b/images/proxy/Dockerfile
@@ -1,4 +1,4 @@
-FROM nginx:alpine
+FROM nginx:1.13.7-alpine
 
 RUN rm -rf /etc/nginx/conf.d
 
diff --git a/images/reporter-jenkins-swarm-agent/Dockerfile b/images/reporter-jenkins-swarm-agent/Dockerfile
index 3edfcfd8ebd8509a1746eb8d5bbe1dc7e3512f2d..375c95a3f7c9c94addbe433aa96a4e40aeb37692 100644
--- a/images/reporter-jenkins-swarm-agent/Dockerfile
+++ b/images/reporter-jenkins-swarm-agent/Dockerfile
@@ -1,9 +1,9 @@
-FROM vfarcic/jenkins-swarm-agent
+FROM vfarcic/jenkins-swarm-agent:17.10.07-4
 ENV CQLSH_VERSION=5.0.3
 
 RUN apk --update add tar curl && \
     pip install cassandra-driver
-    
+
 RUN mkdir -p /usr/var/cqlsh && \
     curl -SL https://pypi.python.org/packages/12/a7/13aff4ad358ff4abef6823d872154d0955ff6796739fcaaa2c80a6940aa6/cqlsh-${CQLSH_VERSION}.tar.gz \
     | tar xzvC /usr/var && \