diff --git a/package.json b/package.json
index a90f5b43e851aa07524afab86b21828c4970f13f..d56d294c0f46a886c8e67d8aaec0c819db22bb6b 100644
--- a/package.json
+++ b/package.json
@@ -8,17 +8,17 @@
   },
   "dependencies": {},
   "devDependencies": {
-    "browserify": "13.0.0",
-    "eslint": "2.7.0",
-    "font-awesome": "4.5.0",
+    "browserify": "13.1.0",
+    "eslint": "3.6.1",
+    "font-awesome": "4.6.3",
     "preboot": "git+https://github.com/mdo/preboot.git#4aab4edd85f076d50609cbe28e4fe66cc0771701",
     "gitbook-logos": "git+https://github.com/GitbookIO/logos.git#2.0.2",
     "gitbook-markdown-css": "1.0.1",
-    "jquery": "2.1.4",
-    "less": "2.6.0",
+    "jquery": "3.1.1",
+    "less": "2.7.1",
     "less-plugin-clean-css": "1.5.1",
-    "mousetrap": "1.5.3",
-    "uglify-js": "2.6.1"
+    "mousetrap": "1.6.0",
+    "uglify-js": "2.7.3"
   },
   "scripts": {
     "prepublish": "./src/build.sh"
diff --git a/src/js/theme/navigation.js b/src/js/theme/navigation.js
index 4b96f08c4363b4553e0793c09b4c81d657f479c5..f1ff54f218a6ed93ca25bf698257dec5f5bfe31a 100644
--- a/src/js/theme/navigation.js
+++ b/src/js/theme/navigation.js
@@ -98,10 +98,17 @@ function setChapterActive($chapter, hash) {
 
     // If hash is provided, set as active chapter
     if (!!hash) {
-        $chapter = $chapters.filter(function() {
-            var titleId = getChapterHash($(this));
-            return titleId == hash;
-        }).first();
+        // Multiple chapters for this file
+        if ($chapters.length > 1) {
+            $chapter = $chapters.filter(function() {
+                var titleId = getChapterHash($(this));
+                return titleId == hash;
+            }).first();
+        }
+        // Only one chapter, no need to search
+        else {
+            $chapter = $chapters.first();
+        }
     }
 
     // Don't update current chapter
@@ -324,9 +331,13 @@ function preparePage(resetScroll) {
     // Focus on content
     $pageWrapper.focus();
 
+    // Get scroller
+    var $scroller = getScroller();
+
     // Reset scroll
-    if (resetScroll !== false) $bookInner.scrollTop(0);
-    $bookBody.scrollTop(0);
+    if (resetScroll !== false) {
+        $scroller.scrollTop(0);
+    }
 
     // Get current page summary chapters
     $chapters = $('.book-summary .summary .chapter')
@@ -347,10 +358,13 @@ function preparePage(resetScroll) {
     });
 
     // Bind scrolling if summary contains more than one link to this page
-    var $scroller = getScroller();
     if ($chapters.length > 1) {
         $scroller.scroll(handleScrolling);
     }
+    // Else, set only chapter in summary as active
+    else {
+        $activeChapter = $chapters.first();
+    }
 }
 
 function isLeftClickEvent(e) {
@@ -417,7 +431,7 @@ function init() {
     $(window).resize(updateNavigationPosition);
 
     // Prepare current page
-    preparePage();
+    preparePage(false);
 }
 
 module.exports = {
diff --git a/src/js/theme/toolbar.js b/src/js/theme/toolbar.js
index 3ed45ee3c1dbe249473363f48ae46bd968cb76f2..d3474c62561244294b01bbb998c3396f65fdcbfb 100644
--- a/src/js/theme/toolbar.js
+++ b/src/js/theme/toolbar.js
@@ -13,7 +13,7 @@ function generateId() {
 
 // Insert a jquery element at a specific position
 function insertAt(parent, selector, index, element) {
-    var lastIndex = parent.children(selector).size();
+    var lastIndex = parent.children(selector).length;
     if (index < 0) {
         index = Math.max(0, lastIndex + 1 + index);
     }