diff --git a/.gitignore b/.gitignore
index 33ec369..0a012d3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 *.swp
 node_modules
 coverage
+.idea
diff --git a/index.js b/index.js
index c9c8434..50822c6 100644
--- a/index.js
+++ b/index.js
@@ -9,6 +9,7 @@ function StringBinding(element, doc, path) {
   this._opListener = null;
   this._inputListener = null;
 }
+
 StringBinding.prototype = Object.create(TextDiffBinding.prototype);
 StringBinding.prototype.constructor = StringBinding;
 
@@ -28,6 +29,7 @@ StringBinding.prototype.attachElement = function() {
   this._inputListener = function() {
     binding.onInput();
   };
+
   this.element.addEventListener('input', this._inputListener, false);
 };
 
@@ -40,6 +42,7 @@ StringBinding.prototype.attachDoc = function() {
   this._opListener = function(op, source) {
     binding._onOp(op, source);
   };
+
   this.doc.on('op', this._opListener);
 };
 
@@ -53,6 +56,7 @@ StringBinding.prototype._onOp = function(op, source) {
   if (op.length > 1) {
     throw new Error('Op with multiple components emitted');
   }
+
   var component = op[0];
   if (isSubpath(this.path, component.p)) {
     this._parseInsertOp(component);
@@ -86,6 +90,7 @@ StringBinding.prototype._get = function() {
     var segment = this.path[i];
     value = value[segment];
   }
+
   return value;
 };
 
@@ -105,5 +110,6 @@ function isSubpath(path, testPath) {
   for (var i = 0; i < path.length; i++) {
     if (testPath[i] !== path[i]) return false;
   }
+
   return true;
 }
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..00866c9
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,1732 @@
+{
+  "name": "sharedb-string-binding",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
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+      "version": "7.5.5",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.5.5.tgz",
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+      "dev": true,
+      "requires": {
+        "@babel/highlight": "^7.0.0"
+      }
+    },
+    "@babel/highlight": {
+      "version": "7.5.0",
+      "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.5.0.tgz",
+      "integrity": "sha512-7dV4eu9gBxoM0dAnj/BCFDW9LFU0zvTrkq0ugM7pnHEgguOEeOz1so2ZghEdzviYzQEED0r4EAgpsBChKy1TRQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.0.0",
+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
+      }
+    },
+    "abbrev": {
+      "version": "1.0.9",
+      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.0.9.tgz",
+      "integrity": "sha1-kbR5JYinc4wl813W9jdSovh3YTU=",
+      "dev": true
+    },
+    "acorn": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.0.0.tgz",
+      "integrity": "sha512-PaF/MduxijYYt7unVGRuds1vBC9bFxbNf+VWqhOClfdgy7RlVkQqt610ig1/yxTgsDIfW1cWDel5EBbOy3jdtQ==",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/acorn-jsx/-/acorn-jsx-5.0.2.tgz",
+      "integrity": "sha512-tiNTrP1MP0QrChmD2DdupCr6HWSFeKVw5d/dHTu4Y7rkAkRhU/Dt7dphAfIUyxtHpl/eBVip5uTNSpQJHylpAw==",
+      "dev": true
+    },
+    "ajv": {
+      "version": "6.10.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.2.tgz",
+      "integrity": "sha512-TXtUUEYHuaTEbLZWIKUr5pmBuhDLy+8KYtPYdcV8qC+pOZL+NKqYwvWSRrVXHn+ZmRRAu8vJTAznH7Oag6RVRw==",
+      "dev": true,
+      "requires": {
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+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.4.1",
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+      "dev": true,
+      "optional": true
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+      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-4.2.1.tgz",
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+      "dev": true,
+      "requires": {
+        "type-fest": "^0.5.2"
+      }
+    },
+    "ansi-regex": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-4.1.0.tgz",
+      "integrity": "sha512-1apePfXM1UOSqw0o9IiFAovVz9M5S1Dg+4TrDwfMewQ6p/rmMueb7tWZjQ1rx4Loy1ArBggoqGpfqqdI4rondg==",
+      "dev": true
+    },
+    "ansi-styles": {
+      "version": "3.2.1",
+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
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+      "dev": true,
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+      }
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+      "dev": true,
+      "requires": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "arraydiff": {
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+        "extsprintf": "^1.2.0"
+      }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
+    },
+    "write": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/write/-/write-1.0.3.tgz",
+      "integrity": "sha512-/lg70HAjtkUgWPVZhZcm+T4hkL8Zbtp1nFNOn3lRrxnlv50SRBv7cR7RqR+GMsd3hUXy9hWBo4CHTbFTcOYwig==",
+      "dev": true,
+      "requires": {
+        "mkdirp": "^0.5.1"
+      }
+    }
+  }
+}
diff --git a/package.json b/package.json
index 09a04c7..fc8ebde 100644
--- a/package.json
+++ b/package.json
@@ -12,13 +12,13 @@
     "test-cover": "node_modules/istanbul/lib/cli.js cover node_modules/mocha/bin/_mocha && npm run lint"
   },
   "devDependencies": {
-    "coveralls": "^2.11.9",
-    "eslint": "^2.13.0",
-    "eslint-config-xo": "^0.14.1",
+    "coveralls": "^3.0.6",
+    "eslint": "^6.2.1",
+    "eslint-config-xo": "^0.26.0",
     "expect.js": "^0.3.1",
     "istanbul": "^0.4.3",
-    "mocha": "^2.5.3",
-    "sharedb": "^1.0.0-beta"
+    "mocha": "^5.2.0",
+    "sharedb": "^1.0.0-beta.23"
   },
   "directories": {
     "test": "test"
@@ -26,6 +26,6 @@
   "author": "Nate Smith",
   "license": "MIT",
   "dependencies": {
-    "text-diff-binding": "^1.0.0"
+    "text-diff-binding": "^1.1.0"
   }
 }
diff --git a/test/index.js b/test/index.js
index ee426b6..e8e1a29 100644
--- a/test/index.js
+++ b/test/index.js
@@ -7,17 +7,21 @@ global.document = {};
 describe('StringBinding', function() {
   beforeEach(function() {
     // Mock an HTML text input or textarea
-    var element = this.element = {
+    var element = {
       value: '',
       selectionStart: 0,
       selectionEnd: 0,
       selectionDirection: 'none'
     };
+
+    this.element = element;
+
     element.setSelectionRange = function(selectionStart, selectionEnd, selectionDirection) {
       element.selectionStart = selectionStart;
       element.selectionEnd = selectionEnd;
       element.selectionDirection = selectionDirection || 'none';
     };
+
     document.activeElement = element;
 
     this.backend = new Backend();