diff --git a/package-lock.json b/package-lock.json
index 037d444..1915cbf 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,79 +1,117 @@
 {
   "name": "splitdiff",
   "version": "0.1.3",
-  "lockfileVersion": 1,
+  "lockfileVersion": 3,
   "requires": true,
-  "dependencies": {
-    "ansi-regex": {
+  "packages": {
+    "": {
+      "version": "0.1.3",
+      "license": "ISC",
+      "dependencies": {
+        "chalk": "^2.3.1",
+        "commander": "^2.16.0",
+        "diff": "^8.0.3",
+        "strip-ansi": "^4.0.0"
+      },
+      "bin": {
+        "splitdiff": "cli.js"
+      }
+    },
+    "node_modules/ansi-regex": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
-      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg="
+      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+      "engines": {
+        "node": ">=4"
+      }
     },
-    "ansi-styles": {
+    "node_modules/ansi-styles": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.0.tgz",
       "integrity": "sha512-NnSOmMEYtVR2JVMIGTzynRkkaxtiq1xnFBcdQD/DnNCYPoEPsVJhM98BDyaoNOQIi7p4okdi3E27eN7GQbsUug==",
-      "requires": {
+      "dependencies": {
         "color-convert": "^1.9.0"
+      },
+      "engines": {
+        "node": ">=4"
       }
     },
-    "chalk": {
+    "node_modules/chalk": {
       "version": "2.3.1",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.3.1.tgz",
       "integrity": "sha512-QUU4ofkDoMIVO7hcx1iPTISs88wsO8jA92RQIm4JAwZvFGGAV2hSAA1NX7oVj2Ej2Q6NDTcRDjPTFrMCRZoJ6g==",
-      "requires": {
+      "dependencies": {
         "ansi-styles": "^3.2.0",
         "escape-string-regexp": "^1.0.5",
         "supports-color": "^5.2.0"
+      },
+      "engines": {
+        "node": ">=4"
       }
     },
-    "color-convert": {
+    "node_modules/color-convert": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.1.tgz",
       "integrity": "sha512-mjGanIiwQJskCC18rPR6OmrZ6fm2Lc7PeGFYwCmy5J34wC6F1PzdGL6xeMfmgicfYcNLGuVFA3WzXtIDCQSZxQ==",
-      "requires": {
+      "dependencies": {
         "color-name": "^1.1.1"
       }
     },
-    "color-name": {
+    "node_modules/color-name": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
     },
-    "commander": {
+    "node_modules/commander": {
       "version": "2.16.0",
       "resolved": "https://registry.npmjs.org/commander/-/commander-2.16.0.tgz",
       "integrity": "sha512-sVXqklSaotK9at437sFlFpyOcJonxe0yST/AG9DkQKUdIE6IqGIMv4SfAQSKaJbSdVEJYItASCrBiVQHq1HQew=="
     },
-    "diff": {
-      "version": "3.5.0",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-3.5.0.tgz",
-      "integrity": "sha512-A46qtFgd+g7pDZinpnwiRJtxbC1hpgf0uzP3iG89scHk0AUC7A1TGxf5OiiOUv/JMZR8GOt8hL900hV0bOy5xA=="
+    "node_modules/diff": {
+      "version": "8.0.3",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-8.0.3.tgz",
+      "integrity": "sha512-qejHi7bcSD4hQAZE0tNAawRK1ZtafHDmMTMkrrIGgSLl7hTnQHmKCeB45xAcbfTqK2zowkM3j3bHt/4b/ARbYQ==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.3.1"
+      }
     },
-    "escape-string-regexp": {
+    "node_modules/escape-string-regexp": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz",
-      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ="
+      "integrity": "sha1-G2HAViGQqN/2rjuyzwIAyhMLhtQ=",
+      "engines": {
+        "node": ">=0.8.0"
+      }
     },
-    "has-flag": {
+    "node_modules/has-flag": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
-      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0="
+      "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+      "engines": {
+        "node": ">=4"
+      }
     },
-    "strip-ansi": {
+    "node_modules/strip-ansi": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
       "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
-      "requires": {
+      "dependencies": {
         "ansi-regex": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
       }
     },
-    "supports-color": {
+    "node_modules/supports-color": {
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.2.0.tgz",
       "integrity": "sha512-F39vS48la4YvTZUPVeTqsjsFNrvcMwrV3RLZINsmHo+7djCvuUzSIeXOnZ5hmjef4bajL1dNccN+tg5XAliO5Q==",
-      "requires": {
+      "dependencies": {
         "has-flag": "^3.0.0"
+      },
+      "engines": {
+        "node": ">=4"
       }
     }
   }
diff --git a/package.json b/package.json
index 6845b9c..1634301 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
   "dependencies": {
     "chalk": "^2.3.1",
     "commander": "^2.16.0",
-    "diff": "^3.5.0",
+    "diff": "^8.0.3",
     "strip-ansi": "^4.0.0"
   }
 }