diff --git a/app/assets/javascripts/mobile.js b/app/assets/javascripts/mobile.js
index 0e97398ed..1583742c3 100644
--- a/app/assets/javascripts/mobile.js
+++ b/app/assets/javascripts/mobile.js
@@ -1,7 +1 @@
-//= require jquery-1.10.1.min.js
 //= require hammer.min.js
-//= require jquery.hammer.min.js
-
-$(function() {
-  $(document).hammer();
-});
diff --git a/app/views/mobile/posts/index.html.erb b/app/views/mobile/posts/index.html.erb
index e9f011c5e..c4df4c231 100644
--- a/app/views/mobile/posts/index.html.erb
+++ b/app/views/mobile/posts/index.html.erb
@@ -11,25 +11,20 @@
   <meta name="viewport" content="width=device-width,initial-scale=1">
   <script type="text/javascript">
   	$(function() {
-      $(document)
-        .hammer()
-        .on("swipeleft", function(e) {
-          if (e.gesture.distance > 125) {
-            var href = $(".paginator a[rel=next]").attr("href");
-            if (href) {
-              window.location = href;
-            }          
-          }
-        })
-        .on("swiperight", function(e) {
-          if (e.gesture.distance > 125) {
-            var href = $(".paginator a[rel=prev]").attr("href");
-            if (href) {
-              window.location = href;
-            }
-          }
-        });
-  	})
+      var doc = new Hammer(document);
+      doc.on("swipeleft", function(e) {
+        var href = $(".paginator a[rel=next]").attr("href");
+        if (href) {
+          window.location = href;
+        }          
+      });
+      doc.on("swiperight", function(e) {
+        var href = $(".paginator a[rel=prev]").attr("href");
+        if (href) {
+          window.location = href;
+        }
+      });
+  	});
   </script>
 <% end %>
 
diff --git a/app/views/mobile/posts/show.html.erb b/app/views/mobile/posts/show.html.erb
index 0775568c8..cc8118999 100644
--- a/app/views/mobile/posts/show.html.erb
+++ b/app/views/mobile/posts/show.html.erb
@@ -13,19 +13,16 @@
   <meta name="viewport" content="width=device-width,initial-scale=<%= @post.device_scale %>">
   <script type="text/javascript">
     $(function() {
-      $(document).on("swipeleft", function(e) {
-        if (e.gesture.distance > 150) {
-          var href = $(".paginator a[rel=next]").attr("href");
-          if (href) {
-            window.location = href;
-          }
+      var doc = new Hammer(document);
+      doc.on("swipeleft", function(e) {
+        var href = $(".paginator a[rel=next]").attr("href");
+        if (href) {
+          window.location = href;
         }
       });
 
-      $(document).on("swiperight", function(e) {
-        if (e.gesture.distance > 150) {
-          window.history.back();
-        }
+      doc.on("swiperight", function(e) {
+        window.history.back();
       })
     });
   </script>
diff --git a/config/danbooru_default_config.rb b/config/danbooru_default_config.rb
index f7ce37b09..3d1d4a952 100644
--- a/config/danbooru_default_config.rb
+++ b/config/danbooru_default_config.rb
@@ -4,7 +4,7 @@ module Danbooru
   class Configuration
     # The version of this Danbooru.
     def version
-      "2.57.0"
+      "2.57.1"
     end
 
     # The name of this Danbooru.
diff --git a/vendor/assets/javascripts/jquery.hammer.min.js b/vendor/assets/javascripts/jquery.hammer.min.js
deleted file mode 100644
index df8081698..000000000
--- a/vendor/assets/javascripts/jquery.hammer.min.js
+++ /dev/null
@@ -1,8 +0,0 @@
-/*! jQuery plugin for Hammer.JS - v1.1.3 - 2014-05-20
- * http://eightmedia.github.com/hammer.js
- *
- * Copyright (c) 2014 Jorik Tangelder <j.tangelder@gmail.com>;
- * Licensed under the MIT license */
-
-!function(a,b){"use strict";function c(a,c){Date.now||(Date.now=function(){return(new Date).getTime()}),a.utils.each(["on","off"],function(d){a.utils[d]=function(a,e,f){c(a)[d](e,function(a){var d=c.extend({},a.originalEvent,a);d.button===b&&(d.button=a.which-1),f.call(this,d)})}}),a.Instance.prototype.trigger=function(a,b){var d=c(this.element);return d.has(b.target).length&&(d=c(b.target)),d.trigger({type:a,gesture:b})},c.fn.hammer=function(b){return this.each(function(){var d=c(this),e=d.data("hammer");e?e&&b&&a.utils.extend(e.options,b):d.data("hammer",new a(this,b||{}))})}}"function"==typeof define&&define.amd?define(["hammerjs","jquery"],c):c(a.Hammer,a.jQuery||a.Zepto)}(window);
-//# sourceMappingURL=jquery.hammer.min.map
\ No newline at end of file