diff --git a/package-lock.json b/package-lock.json
index 96cfd7d7..8d3cd9fb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -693,6 +693,15 @@
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       "dev": true
     },
+    "clean-regexp": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/clean-regexp/-/clean-regexp-1.0.0.tgz",
+      "integrity": "sha1-jffHquUf02h06PjQW5GAvBGj/tc=",
+      "dev": true,
+      "requires": {
+        "escape-string-regexp": "1.0.5"
+      }
+    },
     "cli-cursor": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
@@ -1545,11 +1554,40 @@
         }
       }
     },
+    "eslint-ast-utils": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/eslint-ast-utils/-/eslint-ast-utils-1.1.0.tgz",
+      "integrity": "sha512-otzzTim2/1+lVrlH19EfQQJEhVJSu0zOb9ygb3iapN6UlyaDtyRq4b5U1FuW0v1lRa9Fp/GJyHkSwm6NqABgCA==",
+      "dev": true,
+      "requires": {
+        "lodash.get": "4.4.2",
+        "lodash.zip": "4.2.0"
+      }
+    },
     "eslint-config-holy-grail": {
-      "version": "25.1.0",
-      "resolved": "https://registry.npmjs.org/eslint-config-holy-grail/-/eslint-config-holy-grail-25.1.0.tgz",
-      "integrity": "sha512-MJ48il2rm97r+zYGiPngXqxHsaHgitfN4XEv/VV879icsmqGVo4MMKGprKRHo2RjMEd6QP768Pje0tDZ06XoyA==",
-      "dev": true
+      "version": "26.0.0",
+      "resolved": "https://registry.npmjs.org/eslint-config-holy-grail/-/eslint-config-holy-grail-26.0.0.tgz",
+      "integrity": "sha512-xHH+O+WaVUQuQAG0CYCc81xX3E6YRr8NhrfYpa5X+A2bXXEDo1lEWuyJpgOZTD9q0BGxABsXyBka2LGvrA1wkA==",
+      "dev": true,
+      "requires": {
+        "eslint-plugin-unicorn": "4.0.2"
+      }
+    },
+    "eslint-plugin-unicorn": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/eslint-plugin-unicorn/-/eslint-plugin-unicorn-4.0.2.tgz",
+      "integrity": "sha512-oWe43NRm9YhzYQyrRyLIxndQ+NJUNWGodv0PYEd60tTKJiD3EpEnPhtt+xqs4vkWF6uP/M+VgawJaPf/wldleA==",
+      "dev": true,
+      "requires": {
+        "clean-regexp": "1.0.0",
+        "eslint-ast-utils": "1.1.0",
+        "import-modules": "1.1.0",
+        "lodash.camelcase": "4.3.0",
+        "lodash.kebabcase": "4.1.1",
+        "lodash.snakecase": "4.1.1",
+        "lodash.upperfirst": "4.3.1",
+        "safe-regex": "1.1.0"
+      }
     },
     "eslint-scope": {
       "version": "3.7.1",
@@ -2361,6 +2399,12 @@
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       "dev": true
     },
+    "import-modules": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/import-modules/-/import-modules-1.1.0.tgz",
+      "integrity": "sha1-dI23nFzEK7lwHvq0JPiU5yYA6dw=",
+      "dev": true
+    },
     "imurmurhash": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/imurmurhash/-/imurmurhash-0.1.4.tgz",
@@ -2876,6 +2920,12 @@
       "integrity": "sha1-soqmKIorn8ZRA1x3EfZathkDMaY=",
       "dev": true
     },
+    "lodash.get": {
+      "version": "4.4.2",
+      "resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
+      "integrity": "sha1-LRd/ZS+jHpObRDjVNBSZ36OCXpk=",
+      "dev": true
+    },
     "lodash.kebabcase": {
       "version": "4.1.1",
       "resolved": "https://registry.npmjs.org/lodash.kebabcase/-/lodash.kebabcase-4.1.1.tgz",
@@ -2955,6 +3005,12 @@
       "integrity": "sha1-E2Xt9DFIBIHvDRxolXpe2Z1J984=",
       "dev": true
     },
+    "lodash.zip": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/lodash.zip/-/lodash.zip-4.2.0.tgz",
+      "integrity": "sha1-7GZi5IlkCO1KtsVCo5kLcswIACA=",
+      "dev": true
+    },
     "longest": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
@@ -3688,6 +3744,12 @@
         "signal-exit": "3.0.2"
       }
     },
+    "ret": {
+      "version": "0.1.15",
+      "resolved": "https://registry.npmjs.org/ret/-/ret-0.1.15.tgz",
+      "integrity": "sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==",
+      "dev": true
+    },
     "right-pad": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/right-pad/-/right-pad-1.0.1.tgz",
@@ -3772,6 +3834,15 @@
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       "dev": true
     },
+    "safe-regex": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/safe-regex/-/safe-regex-1.1.0.tgz",
+      "integrity": "sha1-QKNmnzsHfR6UPURinhV91IAjvy4=",
+      "dev": true,
+      "requires": {
+        "ret": "0.1.15"
+      }
+    },
     "safefs": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/safefs/-/safefs-4.1.0.tgz",
diff --git a/package.json b/package.json
index 9b7fd926..13264b46 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "commitizen": "^2.9.6",
     "cz-conventional-changelog": "^2.1.0",
     "eslint": "^4.18.2",
-    "eslint-config-holy-grail": "^25.1.0",
+    "eslint-config-holy-grail": "^26.0.0",
     "greenkeeper-lockfile": "^1.14.0",
     "grunt": "^1.0.2",
     "grunt-cli": "^1.2.0",