diff --git a/Gemfile.lock b/Gemfile.lock
index 705c90f..51a6c2e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -76,7 +76,7 @@ GEM
     mime-types (3.1)
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
-    mini_portile2 (2.1.0)
+    mini_portile2 (2.8.0)
     minitest (5.10.1)
     minitest-rails (2.1.0)
       minitest (~> 5.4)
@@ -90,8 +90,9 @@ GEM
     net-ssh (2.7.0)
     net-ssh-gateway (1.2.0)
       net-ssh (>= 2.6.5)
-    nokogiri (1.7.0.1)
-      mini_portile2 (~> 2.1.0)
+    nokogiri (1.13.9)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     pdf-reader (1.3.3)
       Ascii85 (~> 1.0.0)
       afm (~> 0.2.0)
@@ -103,6 +104,7 @@ GEM
       ttfunk (~> 1.0.2)
     prawn-labels (0.11.5.0)
       prawn (>= 0.12.0)
+    racc (1.6.0)
     rack (1.6.5)
     rack-test (0.6.3)
       rack (>= 1.0)