diff --git a/Dockerfile b/Dockerfile
index f004708d62cdd351d00d26e147d06f09a54ac4c6..5e99845b2cad97037561284cc351182fab58ac1e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ MAINTAINER drupal-admins@cern.ch
 
 # Set the Drush version.
 ENV DRUSH_VERSION 8.1.17
-ENV DRUPAL_VERSION 8.8.4
+ENV DRUPAL_VERSION 8.8.6
 
 RUN yum clean all \
     && yum install -y centos-release-scl \
diff --git a/README.md b/README.md
index d378f30a53be3f1c82aa4ea6828edc170550cd6d..74c16605266fc370f2af1ddb2dd3c4143d2fb928 100644
--- a/README.md
+++ b/README.md
@@ -12,6 +12,8 @@ Update version in Dockerfile
 
 ## Update image
 
+Two actions: sync code with previous command and change DRUPAL_VERSION variable on Dockerfile
+
 - Commit changes to master
 
 Sometime you can have permissions problems like: