diff --git a/.travis.yml b/.travis.yml
index 948b691..f38a0b4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,11 +8,12 @@
 
 before_install:
 - sudo apt-get -qq update
-- sudo apt-get install npm
-- sudo npm install newman --global;
+- sudo apt-get install -y npm
+- sudo npm config set registry="http://registry.npmjs.org/"
+- sudo npm install newman@3.9.3 --global;
 
 script:
 - mvn clean install -Pfull
 
 notifications:
-  email: false
\ No newline at end of file
+  email: false
diff --git a/Dockerfile b/Dockerfile
index a10b5d8..cd366e1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -15,7 +15,7 @@
 # specific language governing permissions and limitations
 # under the License.
 
-FROM maven:3.5-jdk-8-alpine
+FROM maven:3-jdk-8
 
 # Set data directory used for the app's persistence
 VOLUME /data
diff --git a/postman-tests/pom.xml b/postman-tests/pom.xml
index 2d4c04c..40a91fc 100644
--- a/postman-tests/pom.xml
+++ b/postman-tests/pom.xml
@@ -22,7 +22,7 @@
 	<parent>
 		<groupId>org.apache.metamodel.membrane</groupId>
 		<artifactId>Membrane-parent</artifactId>
-		<version>0.1-SNAPSHOT</version>
+		<version>0.2-SNAPSHOT</version>
 	</parent>
 	<modelVersion>4.0.0</modelVersion>
 	<artifactId>Membrane-postman-tests</artifactId>
@@ -111,6 +111,7 @@
 							<![CDATA[
 			                -c "newman run ./Membrane.postman_collection.json \
 			                -e ./environments/${postman.env}.postman_environment.json \
+			                --disable-unicode \
 			                --reporters junit,cli -x \
 			                --reporter-junit-export ./target/NewmanTestResults.xml"
 			                ]]>