diff --git a/Puppetfile b/Puppetfile
index 99022cd2..0a0711c8 100644
--- a/Puppetfile
+++ b/Puppetfile
@@ -142,7 +142,7 @@ mod 'memcached',
   :ref => 'd009260de3c7623003318555ec5ca61217ea3ca1'
 mod 'mongodb',
   :git => 'git://github.com/enovance/puppetlabs-mongodb.git',
-  :ref => 'cb8db6aafa7c55729adb7b35db02315f784ff2ec'
+  :ref => '030100a176a72a32e265b77790d8d15407a13729'
 mod 'mysql',
   :git => 'git://github.com/enovance/puppetlabs-mysql.git',
   :ref => '8b814d4d2cb5786a15e8e37fb3b7444d5d5f0d3f'
diff --git a/manifests/telemetry/collector.pp b/manifests/telemetry/collector.pp
index 10032d92..e6cc354a 100644
--- a/manifests/telemetry/collector.pp
+++ b/manifests/telemetry/collector.pp
@@ -43,6 +43,10 @@ class cloud::telemetry::collector(
     $db_conn = "mongodb://${s_mongo_nodes}/ceilometer"
   }
 
+  mongodb_conn_validator { $mongo_nodes:
+    before => Class['ceilometer::db']
+  }
+
   class { 'ceilometer::db':
     database_connection => $db_conn,
     sync_db             => true,