diff --git a/app/.ruby-version b/app/.ruby-version
index 55bc983..80d02f9 100644
--- a/app/.ruby-version
+++ b/app/.ruby-version
@@ -1 +1 @@
-ruby-2.4.1
+ruby-2.5.5
diff --git a/app/Gemfile b/app/Gemfile
index f6cc060..4edd4ee 100644
--- a/app/Gemfile
+++ b/app/Gemfile
@@ -2,6 +2,3 @@ source 'https://rubygems.org'
 
 gem 'sinatra', ">= 2.0.2"
 gem 'rack', ">= 2.0.6"
-
-gem 'conjur-api'
-gem 'conjur-cli'
diff --git a/app/Gemfile.lock b/app/Gemfile.lock
index 4a9f6b6..9f003e3 100644
--- a/app/Gemfile.lock
+++ b/app/Gemfile.lock
@@ -1,69 +1,23 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (5.1.4)
-      concurrent-ruby (~> 1.0, >= 1.0.2)
-      i18n (~> 0.7)
-      minitest (~> 5.1)
-      tzinfo (~> 1.1)
-    concurrent-ruby (1.0.5)
-    conjur-api (5.0.0)
-      activesupport
-      rest-client
-    conjur-cli (6.0.0)
-      activesupport
-      conjur-api (~> 5.0.0.beta)
-      deep_merge (~> 1.0)
-      gli (>= 2.8.0)
-      highline (~> 1.7)
-      netrc (~> 0.10)
-      table_print (~> 1.5)
-      xdg (~> 2.2)
-    deep_merge (1.2.1)
-    domain_name (0.5.20170404)
-      unf (>= 0.0.5, < 1.0.0)
-    gli (2.17.1)
-    highline (1.7.8)
-    http-cookie (1.0.3)
-      domain_name (~> 0.5)
-    i18n (0.9.1)
-      concurrent-ruby (~> 1.0)
-    mime-types (3.1)
-      mime-types-data (~> 3.2015)
-    mime-types-data (3.2016.0521)
-    minitest (5.10.3)
     mustermann (1.0.3)
-    netrc (0.11.0)
     rack (2.0.6)
     rack-protection (2.0.5)
       rack
-    rest-client (2.0.2)
-      http-cookie (>= 1.0.2, < 2.0)
-      mime-types (>= 1.16, < 4.0)
-      netrc (~> 0.8)
     sinatra (2.0.5)
       mustermann (~> 1.0)
       rack (~> 2.0)
       rack-protection (= 2.0.5)
       tilt (~> 2.0)
-    table_print (1.5.6)
-    thread_safe (0.3.6)
     tilt (2.0.9)
-    tzinfo (1.2.4)
-      thread_safe (~> 0.1)
-    unf (0.1.4)
-      unf_ext
-    unf_ext (0.0.7.4)
-    xdg (2.2.3)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
-  conjur-api
-  conjur-cli
   rack (>= 2.0.6)
   sinatra (>= 2.0.2)
 
 BUNDLED WITH
-   1.17.2
+   1.17.3