diff --git a/package-lock.json b/package-lock.json
index 7fc3c2e..15abaf7 100644
--- a/package-lock.json
+++ b/package-lock.json
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+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
       }
     },
     "window-size": {
@@ -9546,38 +10549,14 @@
       }
     },
     "write-file-atomic": {
-      "version": "1.3.4",
-      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-1.3.4.tgz",
-      "integrity": "sha1-+Aek8LHZ6ROuekgRLmzDrxmRtF8=",
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.3.0.tgz",
+      "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
       "dev": true,
       "requires": {
         "graceful-fs": "^4.1.11",
         "imurmurhash": "^0.1.4",
-        "slide": "^1.1.5"
-      }
-    },
-    "write-json-file": {
-      "version": "1.2.0",
-      "resolved": "http://registry.npmjs.org/write-json-file/-/write-json-file-1.2.0.tgz",
-      "integrity": "sha1-LV3+lqvDyIkFfJOXGqQAXvtUgTQ=",
-      "dev": true,
-      "requires": {
-        "graceful-fs": "^4.1.2",
-        "mkdirp": "^0.5.1",
-        "object-assign": "^4.0.1",
-        "pify": "^2.0.0",
-        "pinkie-promise": "^2.0.0",
-        "sort-keys": "^1.1.1",
-        "write-file-atomic": "^1.1.2"
-      }
-    },
-    "write-pkg": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/write-pkg/-/write-pkg-1.0.0.tgz",
-      "integrity": "sha1-rriqnU14jh2JPfsIVJaLVDqRn1c=",
-      "dev": true,
-      "requires": {
-        "write-json-file": "^1.1.0"
+        "signal-exit": "^3.0.2"
       }
     },
     "xdg-basedir": {
@@ -9632,6 +10611,23 @@
         }
       }
     },
+    "yargs-parser": {
+      "version": "10.1.0",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-10.1.0.tgz",
+      "integrity": "sha512-VCIyR1wJoEBZUqk5PA+oOBF6ypbwh5aNB3I50guxAL/quggdfs4TtNHQrSazFA3fYZ+tEqfs0zIGlv0c/rgjbQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^4.1.0"
+      },
+      "dependencies": {
+        "camelcase": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-4.1.0.tgz",
+          "integrity": "sha1-1UVjW+HjPFQmScaRc+Xeas+uNN0=",
+          "dev": true
+        }
+      }
+    },
     "yauzl": {
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
diff --git a/package.json b/package.json
index a4bb0c3..fe5c2ba 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "yeoman-generator": "^0.22.1"
   },
   "devDependencies": {
-    "ava": "^0.15.2",
+    "ava": "^1.0.1",
     "babel-eslint": "^5.0.0-beta6",
     "pify": "^2.2.0",
     "standard": "^5.4.1",