diff --git a/Gemfile.lock b/Gemfile.lock
index 7dc907e..d9f1dbe 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -103,7 +103,7 @@ GEM
     method_source (0.9.2)
     mimemagic (0.3.3)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.5.0)
     minitest (5.11.3)
     msgpack (1.3.0)
     nexmo (5.9.0)
@@ -113,10 +113,12 @@ GEM
       jwt (~> 2)
       nexmo (~> 5.5)
     nio4r (2.4.0)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.11.1)
+      mini_portile2 (~> 2.5.0)
+      racc (~> 1.4)
     public_suffix (3.1.1)
     puma (3.12.4)
+    racc (1.5.2)
     rack (2.0.8)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)