diff --git a/Gemfile.lock b/Gemfile.lock
index 856b061..c76c59e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -79,7 +79,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2016.0521)
     mini_mime (1.1.2)
-    mini_portile2 (2.8.2)
+    mini_portile2 (2.8.5)
     minitest (5.18.0)
     mongo (2.4.2)
       bson (>= 4.2.1, < 5.0.0)
@@ -91,8 +91,8 @@ GEM
     multi_json (1.12.1)
     multi_xml (0.6.0)
     nio4r (2.5.8)
-    nokogiri (1.14.3)
-      mini_portile2 (~> 2.8.0)
+    nokogiri (1.16.2)
+      mini_portile2 (~> 2.8.2)
       racc (~> 1.4)
     origin (2.3.1)
     pg (0.20.0)
@@ -107,7 +107,7 @@ GEM
       pry (>= 0.10.4)
     puma (4.3.9)
       nio4r (~> 2.0)
-    racc (1.6.2)
+    racc (1.7.3)
     rack (1.6.13)
     rack-cors (1.0.5)
       rack (>= 1.6.0)