diff --git a/.travis.yml b/.travis.yml
index 79703af..0771acb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,17 @@
-notifications:
-  email: false
+---
 language: ruby
+
 script:
-- bundle exec rubocop
-- tests/test.sh
+  - bundle exec rubocop
+  - tests/test.sh
+
 sudo: false
+
 rvm:
-- 2.2
+  - 2.0.0
+  - 2.1.9
+  - 2.3.1
+
 deploy:
   provider: rubygems
   api_key:
@@ -15,3 +20,6 @@ deploy:
   on:
     tags: true
     repo: voxpupuli/metadata-json-lint
+
+notifications:
+  email: false
diff --git a/README.md b/README.md
index e9b1cef..067e631 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@ Simple tool to validate and lint `metadata.json` files in Puppet modules as
 recommended in Puppet Forge style guidelines from [Puppet forge metadata style
 quide](https://docs.puppetlabs.com/puppet/latest/reference/modules_publishing.html#write-a-metadatajson-file)
 
+## Compatibility
+
+metadata-json-lint is compatible with Ruby versions 2.0.0, 2.1.9 and
+2.3.1.
+
 ## Installation
 
 ```shell
@@ -43,19 +48,5 @@ rake metadata_lint
 
 ## Contributors
 
-A Big thank you to the code contributors:
-
-* Spencer Krum
-* Rob Nelson
-* Matthew Haughton
-* Dominic Cleal
-* Tim Meusel
-* Igor Galić
-* Richard Pijnenburg
-* Djuri Baars
-* Joseph (Jy) Yaworski
-* Mike Arnold
-* Nan Liu
-* Raphaël Pinson
-* Sebastien Badia
-* William Van Hevelingen
+A Big thank you to the
+[contributors](https://github.com/voxpupuli/metadata-json-lint/graphs/contributors)
diff --git a/metadata-json-lint.gemspec b/metadata-json-lint.gemspec
index 513af48..d7628cb 100644
--- a/metadata-json-lint.gemspec
+++ b/metadata-json-lint.gemspec
@@ -13,7 +13,7 @@ Gem::Specification.new do |s|
 
   s.add_runtime_dependency 'spdx-licenses', '~> 1.0'
   s.add_runtime_dependency 'json'
-  s.add_runtime_dependency 'semantic_puppet', '>= 0.1.2', '< 1.0.0'
+  s.add_runtime_dependency 'semantic_puppet', '>= 0.1.2', '< 2.0.0'
   s.add_development_dependency 'rake'
   s.add_development_dependency 'rubocop'
 end
diff --git a/tests/test.sh b/tests/test.sh
index bf0af07..bdeeeae 100755
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -21,6 +21,8 @@ test() {
   RESULT=$?
   if [ $RESULT -ne $expect ]; then
       fail "Failing Test '${name}' (bin)"
+  else
+      echo "Successful Test '${name}' (bin)"
   fi
 
   # Only check the Rakefile when no additional arguments were passed to metadata-json-lint.
@@ -30,6 +32,8 @@ test() {
     RESULT=$?
     if [ $RESULT -ne $expect ]; then
         fail "Failing Test '${name}' (rake)"
+    else
+        echo "Successful Test '${name}' (rake)"
     fi
   fi
   cd ..