diff --git a/Gemfile.lock b/Gemfile.lock
index 12112ca..a3b88fd 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -88,7 +88,7 @@ GEM
     crass (1.0.6)
     declarative (0.0.10)
     declarative-option (0.1.0)
-    diffy (3.3.0)
+    diffy (3.4.2)
     erubi (1.9.0)
     execjs (2.7.0)
     faraday (1.0.1)
@@ -138,7 +138,9 @@ GEM
       mimemagic (~> 0.3.2)
     memoist (0.16.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
     minitest (5.14.1)