diff --git a/Gemfile.lock b/Gemfile.lock
index bf6fd6a1..5e34c73e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -215,7 +215,7 @@ GEM
     hashdiff (1.0.1)
     html_tokenizer (0.0.7)
     htmlentities (4.3.4)
-    i18n (1.8.7)
+    i18n (1.8.10)
       concurrent-ruby (~> 1.0)
     jbuilder (2.10.1)
       activesupport (>= 5.0.0)
@@ -252,12 +252,14 @@ GEM
     marcel (0.3.3)
       mimemagic (~> 0.3.2)
     method_source (1.0.0)
-    mimemagic (0.3.5)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.2)
     mini_portile2 (2.5.0)
     mini_racer (0.3.1)
       libv8 (~> 8.4.255)
-    minitest (5.14.3)
+    minitest (5.14.4)
     msgpack (1.4.2)
     multipart-post (2.1.1)
     nenv (0.3.0)
@@ -408,10 +410,8 @@ GEM
       simplecov_json_formatter (~> 0.1)
     simplecov-html (0.12.3)
     simplecov_json_formatter (0.1.2)
-    skylight (4.3.1)
-      skylight-core (= 4.3.1)
-    skylight-core (4.3.1)
-      activesupport (>= 4.2.0)
+    skylight (5.1.0)
+      activesupport (>= 5.2.0)
     slop (3.6.0)
     smart_properties (1.15.0)
     spring (2.1.1)