diff --git a/Gemfile.lock b/Gemfile.lock
index b58bc85..889864e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -44,13 +44,13 @@ GEM
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     method_source (0.9.2)
-    mini_portile2 (2.6.1)
+    mini_portile2 (2.8.0)
     minitest (5.11.3)
-    nokogiri (1.12.5)
-      mini_portile2 (~> 2.6.1)
+    nokogiri (1.13.3)
+      mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
     power_assert (1.1.5)
-    racc (1.5.2)
+    racc (1.6.0)
     rack (2.2.3)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)