diff --git a/Gemfile.lock b/Gemfile.lock
index 7485708..59a1441 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,5 @@
 GIT
-  remote: git://github.com/billthompson/birch.git
+  remote: https://github.com/billthompson/birch.git
   revision: dc6c8e5d667f6c946c989f4d8f159f622d3bf77a
   branch: birch-ruby22
   specs:
@@ -89,7 +89,7 @@ GEM
       term-ansicolor (~> 1.3)
       thor (~> 0.19.4)
       tins (~> 1.6)
-    crass (1.0.4)
+    crass (1.0.6)
     d3-cloud-rails (0.0.2)
       d3-rails (~> 4.10)
       rails (~> 5.0)
@@ -139,7 +139,7 @@ GEM
     jwt (2.1.0)
     libv8 (6.7.288.46.1)
     loggability (0.14.0)
-    loofah (2.2.3)
+    loofah (2.11.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
@@ -154,7 +154,9 @@ GEM
       railties (>= 3.0)
     method_source (0.9.2)
     mime-types (1.25.1)
-    mimemagic (0.3.3)
+    mimemagic (0.3.10)
+      nokogiri (~> 1)
+      rake
     mini_mime (1.0.1)
     mini_portile2 (2.4.0)
     mini_racer (0.2.4)