diff --git a/package-lock.json b/package-lock.json
index 46d013a..d74578e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3165,12 +3165,14 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -3185,17 +3187,20 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -3312,7 +3317,8 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -3324,6 +3330,7 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -3338,6 +3345,7 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -3345,12 +3353,14 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "minipass": {
           "version": "2.2.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.1",
             "yallist": "^3.0.0"
@@ -3369,6 +3379,7 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -3449,7 +3460,8 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -3461,6 +3473,7 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -3582,6 +3595,7 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -5301,6 +5315,7 @@
           "version": "0.1.4",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "kind-of": "^3.0.2",
             "longest": "^1.0.1",
@@ -5625,7 +5640,8 @@
         "is-buffer": {
           "version": "1.1.6",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "is-builtin-module": {
           "version": "1.0.0",
@@ -5709,6 +5725,7 @@
           "version": "3.2.2",
           "bundled": true,
           "dev": true,
+          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -5755,7 +5772,8 @@
         "longest": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "lru-cache": {
           "version": "4.1.3",
@@ -6021,7 +6039,8 @@
         "repeat-string": {
           "version": "1.6.1",
           "bundled": true,
-          "dev": true
+          "dev": true,
+          "optional": true
         },
         "require-directory": {
           "version": "2.1.1",
@@ -6862,22 +6881,60 @@
       }
     },
     "postcss-attribute-case-insensitive": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/postcss-attribute-case-insensitive/-/postcss-attribute-case-insensitive-4.0.0.tgz",
-      "integrity": "sha512-K/zqdg0/UgUgC8qR0lDuxYzmowPpnvrrNC5YuoqzhHMubR9AuhsPlpVu3jjkLHgDAzR+ohD/m7//iGnN9WxbzQ==",
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/postcss-attribute-case-insensitive/-/postcss-attribute-case-insensitive-4.0.1.tgz",
+      "integrity": "sha512-L2YKB3vF4PetdTIthQVeT+7YiSzMoNMLLYxPXXppOOP7NoazEAy45sh2LvJ8leCQjfBcfkYQs8TtCcQjeZTp8A==",
       "requires": {
         "postcss": "^7.0.2",
-        "postcss-selector-parser": "^5.0.0-rc.3"
+        "postcss-selector-parser": "^5.0.0"
       },
       "dependencies": {
+        "chalk": {
+          "version": "2.4.2",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
+          "integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
+          },
+          "dependencies": {
+            "supports-color": {
+              "version": "5.5.0",
+              "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+              "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+              "requires": {
+                "has-flag": "^3.0.0"
+              }
+            }
+          }
+        },
         "postcss": {
-          "version": "7.0.5",
-          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.5.tgz",
-          "integrity": "sha512-HBNpviAUFCKvEh7NZhw1e8MBPivRszIiUnhrJ+sBFVSYSqubrzwX3KG51mYgcRHX8j/cAgZJedONZcm5jTBdgQ==",
+          "version": "7.0.8",
+          "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.8.tgz",
+          "integrity": "sha512-WudsIzuTKRw9IInRTPBgVXJ7DKR26HT09Rxp0g3w0Fqh3TUtYICcUmvC0xURj04o3vdcDtnjCAUCECg/p341iQ==",
           "requires": {
-            "chalk": "^2.4.1",
+            "chalk": "^2.4.2",
             "source-map": "^0.6.1",
-            "supports-color": "^5.5.0"
+            "supports-color": "^6.0.0"
+          }
+        },
+        "postcss-selector-parser": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/postcss-selector-parser/-/postcss-selector-parser-5.0.0.tgz",
+          "integrity": "sha512-w+zLE5Jhg6Liz8+rQOWEAwtwkyqpfnmsinXjXg6cY7YIONZZtgvE0v2O0uhQBs0peNomOJwWRKt6JBfTdTd3OQ==",
+          "requires": {
+            "cssesc": "^2.0.0",
+            "indexes-of": "^1.0.1",
+            "uniq": "^1.0.1"
+          }
+        },
+        "supports-color": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.0.0.tgz",
+          "integrity": "sha512-on9Kwidc1IUQo+bQdhi8+Tijpo0e1SS6RoGo2guUwn5vdaxw8RXOF9Vb2ws+ihWOmh4JnCJOvaziZWP1VABaLg==",
+          "requires": {
+            "has-flag": "^3.0.0"
           }
         }
       }
diff --git a/package.json b/package.json
index f85b341..c0d38f2 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "dependencies": {
     "autoprefixer": "9.3.1",
     "cssnano": "4.1.7",
-    "postcss-attribute-case-insensitive": "4.0.0",
+    "postcss-attribute-case-insensitive": "4.0.1",
     "postcss-calc": "7.0.1",
     "postcss-color-function": "^4.0.1",
     "postcss-color-gray": "5.0.0",