diff --git a/package-lock.json b/package-lock.json
index 25d5c962..93678895 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
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         "browserify": "^13.0.0",
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+        "budo": "^11.8.4",
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         "chalk": "^1.1.1",
@@ -80,6 +80,38 @@
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+      "resolved": "https://registry.npmjs.org/acorn-node/-/acorn-node-1.8.2.tgz",
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+      "dependencies": {
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+        "acorn-walk": "^7.0.0",
+        "xtend": "^4.0.2"
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+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.4.1.tgz",
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+      "dev": true,
+      "bin": {
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+      "engines": {
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+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-7.2.0.tgz",
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+      "dev": true,
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@@ -222,15 +254,6 @@
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@@ -320,21 +343,30 @@
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+      "funding": {
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@@ -1162,69 +1194,105 @@
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-      "integrity": "sha1-EBXLH+LEQ4WCWVgdtTMy+NDPUPk=",
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@@ -1594,208 +1662,750 @@
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+      "integrity": "sha512-w9c4xkx6mPidwp7180ckYWfMmvxpjlZuIudNtDf4N/tTAUB8VJbX25qZoAsrtGuYNnGw3pa0AXgbGKRB8/EceA==",
+      "dev": true,
+      "requires": {
+        "available-typed-arrays": "^1.0.5",
+        "call-bind": "^1.0.2",
+        "for-each": "^0.3.3",
+        "gopd": "^1.0.1",
+        "has-tostringtag": "^1.0.0",
+        "is-typed-array": "^1.1.10"
+      }
+    },
     "word-wrapper": {
       "version": "1.0.7",
       "resolved": "https://registry.npmjs.org/word-wrapper/-/word-wrapper-1.0.7.tgz",
@@ -18278,9 +20128,9 @@
       "dev": true
     },
     "xtend": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
-      "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68=",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
+      "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==",
       "dev": true
     },
     "yeast": {
diff --git a/package.json b/package.json
index ffa7186b..bebe5a8f 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
     "babel-preset-env": "^1.6.1",
     "babelify": "^8.0.0",
     "browserify": "^13.0.0",
-    "budo": "^9.0.0",
+    "budo": "^11.8.4",
     "chai": "^3.5.0",
     "chai-shallow-deep-equal": "^1.3.0",
     "chalk": "^1.1.1",