diff --git a/Gemfile.lock b/Gemfile.lock
index b602c46..6f37de6 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,5 +1,5 @@
 GIT
-  remote: git://github.com/middleman-contrib/middleman-deploy.git
+  remote: https://github.com/middleman-contrib/middleman-deploy.git
   revision: 243ab38b08896cd5a37d6845a01a5761b934a898
   ref: 243ab38b08896cd5a37d6845a01a5761b934a898
   specs:
@@ -105,9 +105,9 @@ GEM
       rack-livereload (~> 0.3.15)
     minitest (5.9.0)
     multipart-post (2.0.0)
-    net-sftp (2.1.2)
-      net-ssh (>= 2.6.5)
-    net-ssh (3.2.0)
+    net-sftp (4.0.0)
+      net-ssh (>= 5.0.0, < 8.0.0)
+    net-ssh (6.1.0)
     octokit (4.3.0)
       sawyer (~> 0.7.0, >= 0.5.3)
     padrino-helpers (0.13.3.2)
@@ -120,8 +120,8 @@ GEM
     parser (2.3.1.4)
       ast (~> 2.2)
     powerpack (0.1.1)
-    ptools (1.3.3)
-    rack (1.6.4)
+    ptools (1.5.0)
+    rack (1.6.13)
     rack-livereload (0.3.16)
       rack
     rack-rewrite (1.5.1)