diff --git a/CHANGELOG.md b/CHANGELOG.md
index adaf32d6..09901ec0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -25,7 +25,9 @@ none
 none
 
 ### Configuration
-none
+- [#131 - Changed default docker image: ubuntu-16.04_tomcat-7 instead of ubuntu-14.04_tomcat-7](https://github.com/Asqatasun/Contrast-Finder/issues/131)
+
+
 
 ### Documentation
 none
diff --git a/docker/RELEASE/Dockerfile b/docker/RELEASE/Dockerfile
index a6718a90..c59b0530 120000
--- a/docker/RELEASE/Dockerfile
+++ b/docker/RELEASE/Dockerfile
@@ -1 +1 @@
-ubuntu-14.04_tomcat-7/Dockerfile
\ No newline at end of file
+ubuntu-16.04_tomcat-7/Dockerfile
\ No newline at end of file
diff --git a/docker/SNAPSHOT-local/Dockerfile b/docker/SNAPSHOT-local/Dockerfile
index 2973c9b9..fb2cd11e 120000
--- a/docker/SNAPSHOT-local/Dockerfile
+++ b/docker/SNAPSHOT-local/Dockerfile
@@ -1 +1 @@
-distrib/ubuntu-14.04_tomcat-7/Dockerfile
\ No newline at end of file
+distrib/ubuntu-16.04_tomcat-7/Dockerfile
\ No newline at end of file
diff --git a/docker/SNAPSHOT-local/test_config-file/01.no.config.file/Dockerfile b/docker/SNAPSHOT-local/test_config-file/01.no.config.file/Dockerfile
index d79b471f..a8d876dd 100644
--- a/docker/SNAPSHOT-local/test_config-file/01.no.config.file/Dockerfile
+++ b/docker/SNAPSHOT-local/test_config-file/01.no.config.file/Dockerfile
@@ -1,4 +1,4 @@
-FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-14.04_tomcat-7
+FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-16.04_tomcat-7
 
 # #### usage ######################################################
 #
diff --git a/docker/SNAPSHOT-local/test_config-file/10.default.algo/Dockerfile b/docker/SNAPSHOT-local/test_config-file/10.default.algo/Dockerfile
index 9bc04d12..d72e27ce 100644
--- a/docker/SNAPSHOT-local/test_config-file/10.default.algo/Dockerfile
+++ b/docker/SNAPSHOT-local/test_config-file/10.default.algo/Dockerfile
@@ -1,4 +1,4 @@
-FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-14.04_tomcat-7
+FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-16.04_tomcat-7
 
 # #### usage ######################################################
 #
diff --git a/docker/SNAPSHOT-local/test_config-file/20.debug.env/Dockerfile b/docker/SNAPSHOT-local/test_config-file/20.debug.env/Dockerfile
index ada5ab0d..ca32d383 100644
--- a/docker/SNAPSHOT-local/test_config-file/20.debug.env/Dockerfile
+++ b/docker/SNAPSHOT-local/test_config-file/20.debug.env/Dockerfile
@@ -1,4 +1,4 @@
-FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-14.04_tomcat-7
+FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-16.04_tomcat-7
 
 # #### usage ######################################################
 #
diff --git a/docker/SNAPSHOT-local/test_config-file/30.piwik/Dockerfile b/docker/SNAPSHOT-local/test_config-file/30.piwik/Dockerfile
index d8c4fabe..af7d0c79 100644
--- a/docker/SNAPSHOT-local/test_config-file/30.piwik/Dockerfile
+++ b/docker/SNAPSHOT-local/test_config-file/30.piwik/Dockerfile
@@ -1,4 +1,4 @@
-FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-14.04_tomcat-7
+FROM asqatasun/contrast-finder:pre-requisites_Ubuntu-16.04_tomcat-7
 
 # #### usage ######################################################
 #