diff --git a/.travis.yml b/.travis.yml
index dc4dc1b34..a0d759e00 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -15,7 +15,7 @@ script:
   - 'bundle exec rake $CHECK'
 env:
   global:
-    - PARALLEL_TEST_PROCESSORS=16
+    - PARALLEL_TEST_PROCESSORS=12
 matrix:
   fast_finish: true
   include:
diff --git a/metadata.json b/metadata.json
index 0f8ef16e5..ddcda130f 100644
--- a/metadata.json
+++ b/metadata.json
@@ -13,7 +13,7 @@
   ],
   "dependencies": [
     { "name": "puppetlabs/stdlib", "version_requirement": ">= 4.16.0 < 5.0.0" },
-    { "name": "puppetlabs/concat", "version_requirement": ">= 2.0.1 < 3.0.0" },
+    { "name": "puppetlabs/concat", "version_requirement": ">= 2.0.1 < 5.0.0" },
     { "name": "puppetlabs/apt", "version_requirement": ">= 2.0.0 < 5.0.0" },
     { "name": "puppetlabs/chocolatey", "version_requirement": ">= 0.7.0 < 3.0.0" },
     { "name": "puppet/zypprepo", "version_requirement": ">= 2.0.0 < 3.0.0" }