diff --git a/Gemfile.lock b/Gemfile.lock
index 57c553cd..a4d9a199 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,5 @@
 GIT
-  remote: git://github.com/mimemagicrb/mimemagic.git
+  remote: https://github.com/mimemagicrb/mimemagic.git
   revision: d5ebc0cd846dcc68142622c76ad71d021768b7c2
   ref: d5ebc0cd846dcc68142622c76ad71d021768b7c2
   specs:
@@ -248,7 +248,7 @@ GEM
       mime-types-data (~> 3.2015)
     mime-types-data (3.2019.1009)
     mini_mime (1.0.2)
-    mini_portile2 (2.4.0)
+    mini_portile2 (2.8.0)
     minitest (5.14.1)
     multi_json (1.14.1)
     multipart-post (2.1.1)
@@ -265,8 +265,9 @@ GEM
     net-ssh-gateway (2.0.0)
       net-ssh (>= 4.0.0)
     nio4r (2.5.2)
-    nokogiri (1.10.8)
-      mini_portile2 (~> 2.4.0)
+    nokogiri (1.13.6)
+      mini_portile2 (~> 2.8.0)
+      racc (~> 1.4)
     nori (2.6.0)
     notiffany (0.1.3)
       nenv (~> 0.1)
@@ -292,6 +293,7 @@ GEM
     public_suffix (4.0.1)
     puma (4.3.5)
       nio4r (~> 2.0)
+    racc (1.6.0)
     rack (1.6.12)
     rack-attack (6.2.1)
       rack (>= 1.0, < 3)