NXD: Gemfile, fix cannot install 'gemnasium-gitlab-service' version 0.2

Gemfile

@@ -172,7 +172,7 @@ gem 'jira-ruby', '~> 1.1.2'
 gem 'gitlab-flowdock-git-hook', '~> 1.0.1'
 
 # Gemnasium integration
-gem 'gemnasium-gitlab-service', '~> 0.2'
+gem "gemnasium-gitlab-service", git: "https://github.com/gemnasium/gemnasium-gitlab-service"
 
 # Slack integration
 gem 'slack-notifier', '~> 1.5.1'

Gemfile.lock

+GIT
+  remote: https://github.com/gemnasium/gemnasium-gitlab-service
+  revision: 4f2f3cb0003c8f5938286cb7161ff93d2804f934
+  specs:
+    gemnasium-gitlab-service (0.2.6)
+      rugged (~> 0.21)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -240,8 +247,6 @@ GEM
     fuubar (2.0.0)
       rspec (~> 3.0)
       ruby-progressbar (~> 1.4)
-    gemnasium-gitlab-service (0.2.6)
-      rugged (~> 0.21)
     gemojione (3.0.1)
       json
     get_process_mem (0.2.0)
@@ -877,7 +882,7 @@ DEPENDENCIES
   font-awesome-rails (~> 4.6.1)
   foreman (~> 0.78.0)
   fuubar (~> 2.0.0)
-  gemnasium-gitlab-service (~> 0.2)
+  gemnasium-gitlab-service!
   gemojione (~> 3.0)
   github-linguist (~> 4.7.0)
   gitlab-flowdock-git-hook (~> 1.0.1)