diff --git a/Gemfile.lock b/Gemfile.lock
index 8590289..b315523 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -43,8 +43,6 @@ GEM
     docile (1.1.5)
     eventmachine (1.0.7)
     excon (0.31.0)
-    fission (0.5.0)
-      CFPropertyList (~> 2.2)
     fluent-logger (0.4.9)
       msgpack (>= 0.4.4, < 0.6.0, != 0.5.3, != 0.5.2, != 0.5.1, != 0.5.0)
       yajl-ruby (~> 1.0)
@@ -55,7 +53,7 @@ GEM
       rspec (>= 2.0, < 4.0)
     kgio (2.9.2)
     mime-types (2.3)
-    mini_portile (0.6.0)
+    mini_portile2 (2.4.0)
     msgpack (0.5.8)
     multi_json (1.10.1)
     nats (0.5.0.beta.14)
@@ -66,8 +64,8 @@ GEM
     net-scp (1.2.1)
       net-ssh (>= 2.6.5)
     net-ssh (2.9.1)
-    nokogiri (1.6.2.1)
-      mini_portile (= 0.6.0)
+    nokogiri (1.9.1)
+      mini_portile2 (~> 2.4.0)
     rack (1.5.2)
     rack-protection (1.5.3)
       rack