diff --git a/.circleci/config.yml b/.circleci/config.yml
index e31f9da0..90618253 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -65,6 +65,11 @@ jobs:
       - image: node:11
     working_directory: ~/repo-linux-node-v11
     steps: *build-steps
+  build-linux-node-v12:
+    docker:
+      - image: node:12
+    working_directory: ~/repo-linux-node-v12
+    steps: *build-steps
   build-osx-node-v8:
     macos:
       xcode: "9.0"
@@ -89,6 +94,14 @@ jobs:
         - brew install node@11
     working_directory: ~/repo-osx-node-v11
     steps: *build-steps
+  build-osx-node-v12:
+    macos:
+      xcode: "9.0"
+    dependencies:
+      override:
+        - brew install node@12
+    working_directory: ~/repo-osx-node-v12
+    steps: *build-steps
 
 workflows:
   version: 2
@@ -97,6 +110,8 @@ workflows:
       - build-linux-node-v8
       - build-linux-node-v10
       - build-linux-node-v11
+      - build-linux-node-v12
       - build-osx-node-v8
       - build-osx-node-v10
       - build-osx-node-v11
+      - build-osx-node-v12
diff --git a/appveyor.yml b/appveyor.yml
index d2e36837..c47656a5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,11 +4,19 @@ environment:
     - nodejs_version: "8"
     - nodejs_version: "10"
     - nodejs_version: "11"
+    - nodejs_version: "12"
 platform:
   - x86
   - x64
 install:
-  - ps: Install-Product node $env:nodejs_version
+  # https://github.com/appveyor/ci/issues/2921#issuecomment-501016533
+  - ps: |
+      try {
+      Install-Product node $env:nodejs_version $env:platform
+      } catch {
+      echo "Unable to install node $env:nodejs_version, trying update..."
+      Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) $env:platform
+      }
   - md public
   - npm --vs2015 install --global windows-build-tools
   - npm install
diff --git a/package-lock.json b/package-lock.json
index f73befc4..24f6e172 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2296,7 +2296,6 @@
       "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
       "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
       "dev": true,
-      "optional": true,
       "requires": {
         "kind-of": "^3.0.2",
         "longest": "^1.0.1",
@@ -2308,7 +2307,6 @@
           "resolved": "https://registry.npmjs.org/kind-of/-/kind-of-3.2.2.tgz",
           "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
           "dev": true,
-          "optional": true,
           "requires": {
             "is-buffer": "^1.1.5"
           }
@@ -8698,9 +8696,9 @@
       }
     },
     "js-base64": {
-      "version": "2.4.3",
-      "resolved": "https://registry.npmjs.org/js-base64/-/js-base64-2.4.3.tgz",
-      "integrity": "sha512-H7ErYLM34CvDMto3GbD6xD0JLUGYXR3QTcH6B/tr4Hi/QpSThnCsIp+Sy5FRTw3B0d6py4HcNkW7nO/wdtGWEw==",
+      "version": "2.5.1",
+      "resolved": "https://registry.npmjs.org/js-base64/-/js-base64-2.5.1.tgz",
+      "integrity": "sha512-M7kLczedRMYX4L8Mdh4MzyAMM9O5osx+4FcOQuTvr3A9F2D9S5JXheN0ewNbrvK2UatkTRhL5ejGmGSjNMiZuw==",
       "dev": true
     },
     "js-levenshtein": {
@@ -8938,12 +8936,6 @@
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.5.tgz",
       "integrity": "sha512-svL3uiZf1RwhH+cWrfZn3A4+U58wbP0tGVTLQPbjplZxZ8ROD9VLuNgsRniTlLe7OlSqR79RUehXgpBW/s0IQw=="
     },
-    "lodash.assign": {
-      "version": "4.2.0",
-      "resolved": "https://registry.npmjs.org/lodash.assign/-/lodash.assign-4.2.0.tgz",
-      "integrity": "sha1-DZnzzNem0mHRm9rrkkUAXShYCOc=",
-      "dev": true
-    },
     "lodash.camelcase": {
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/lodash.camelcase/-/lodash.camelcase-4.3.0.tgz",
@@ -9167,8 +9159,7 @@
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
       "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true,
-      "optional": true
+      "dev": true
     },
     "longest-streak": {
       "version": "2.0.2",
@@ -10012,7 +10003,8 @@
       "version": "2.11.1",
       "resolved": "https://registry.npmjs.org/nan/-/nan-2.11.1.tgz",
       "integrity": "sha512-iji6k87OSXa0CcrLl9z+ZiYSuR2o+c0bGuNmXdrhTQTakxytAFsC56SArGYoiHlJlFoHSnvmhpceZJaXkVuOtA==",
-      "dev": true
+      "dev": true,
+      "optional": true
     },
     "nanomatch": {
       "version": "1.2.9",
@@ -10165,9 +10157,9 @@
       },
       "dependencies": {
         "ajv": {
-          "version": "6.5.5",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.5.tgz",
-          "integrity": "sha512-7q7gtRQDJSyuEHjuVgHoUa2VuemFiCMrfQc9Tc08XTAc4Zj/5U1buQJ0HU6i7fKjXU09SVgSmxa4sLvuvS8Iyg==",
+          "version": "6.10.0",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
+          "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
           "dev": true,
           "requires": {
             "fast-deep-equal": "^2.0.1",
@@ -10211,18 +10203,18 @@
           "dev": true
         },
         "mime-db": {
-          "version": "1.37.0",
-          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.37.0.tgz",
-          "integrity": "sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==",
+          "version": "1.40.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
+          "integrity": "sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==",
           "dev": true
         },
         "mime-types": {
-          "version": "2.1.21",
-          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.21.tgz",
-          "integrity": "sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==",
+          "version": "2.1.24",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.24.tgz",
+          "integrity": "sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==",
           "dev": true,
           "requires": {
-            "mime-db": "~1.37.0"
+            "mime-db": "1.40.0"
           }
         },
         "oauth-sign": {
@@ -10352,9 +10344,9 @@
       }
     },
     "node-sass": {
-      "version": "4.10.0",
-      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.10.0.tgz",
-      "integrity": "sha512-fDQJfXszw6vek63Fe/ldkYXmRYK/QS6NbvM3i5oEo9ntPDy4XX7BcKZyTKv+/kSSxRtXXc7l+MSwEmYc0CSy6Q==",
+      "version": "4.12.0",
+      "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.12.0.tgz",
+      "integrity": "sha512-A1Iv4oN+Iel6EPv77/HddXErL2a+gZ4uBeZUy+a8O35CFYTXhgA8MgLCWBtwpGZdCvTvQ9d+bQxX/QC36GDPpQ==",
       "dev": true,
       "requires": {
         "async-foreach": "^0.1.3",
@@ -10364,12 +10356,10 @@
         "get-stdin": "^4.0.1",
         "glob": "^7.0.3",
         "in-publish": "^2.0.0",
-        "lodash.assign": "^4.2.0",
-        "lodash.clonedeep": "^4.3.2",
-        "lodash.mergewith": "^4.6.0",
+        "lodash": "^4.17.11",
         "meow": "^3.7.0",
         "mkdirp": "^0.5.1",
-        "nan": "^2.10.0",
+        "nan": "^2.13.2",
         "node-gyp": "^3.8.0",
         "npmlog": "^4.0.0",
         "request": "^2.88.0",
@@ -10379,9 +10369,9 @@
       },
       "dependencies": {
         "ajv": {
-          "version": "6.5.5",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.5.5.tgz",
-          "integrity": "sha512-7q7gtRQDJSyuEHjuVgHoUa2VuemFiCMrfQc9Tc08XTAc4Zj/5U1buQJ0HU6i7fKjXU09SVgSmxa4sLvuvS8Iyg==",
+          "version": "6.10.0",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
+          "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
           "dev": true,
           "requires": {
             "fast-deep-equal": "^2.0.1",
@@ -10434,21 +10424,33 @@
           "integrity": "sha512-xbbCH5dCYU5T8LcEhhuh7HJ88HXuW3qsI3Y0zOZFKfZEHcpWiHU/Jxzk629Brsab/mMiHQti9wMP+845RPe3Vg==",
           "dev": true
         },
+        "lodash": {
+          "version": "4.17.11",
+          "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
+          "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+          "dev": true
+        },
         "mime-db": {
-          "version": "1.37.0",
-          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.37.0.tgz",
-          "integrity": "sha512-R3C4db6bgQhlIhPU48fUtdVmKnflq+hRdad7IyKhtFj06VPNVdk2RhiYL3UjQIlso8L+YxAtFkobT0VK+S/ybg==",
+          "version": "1.40.0",
+          "resolved": "https://registry.npmjs.org/mime-db/-/mime-db-1.40.0.tgz",
+          "integrity": "sha512-jYdeOMPy9vnxEqFRRo6ZvTZ8d9oPb+k18PKoYNYUe2stVEBPPwsln/qWzdbmaIvnhZ9v2P+CuecK+fpUfsV2mA==",
           "dev": true
         },
         "mime-types": {
-          "version": "2.1.21",
-          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.21.tgz",
-          "integrity": "sha512-3iL6DbwpyLzjR3xHSFNFeb9Nz/M8WDkX33t1GFQnFOllWk8pOrh/LSrB5OXlnlW5P9LH73X6loW/eogc+F5lJg==",
+          "version": "2.1.24",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.24.tgz",
+          "integrity": "sha512-WaFHS3MCl5fapm3oLxU4eYDw77IQM2ACcxQ9RIxfaC3ooc6PFuBMGZZsYpvoXS5D5QTWPieo1jjLdAm3TBP3cQ==",
           "dev": true,
           "requires": {
-            "mime-db": "~1.37.0"
+            "mime-db": "1.40.0"
           }
         },
+        "nan": {
+          "version": "2.13.2",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.13.2.tgz",
+          "integrity": "sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==",
+          "dev": true
+        },
         "oauth-sign": {
           "version": "0.9.0",
           "resolved": "https://registry.npmjs.org/oauth-sign/-/oauth-sign-0.9.0.tgz",
diff --git a/package.json b/package.json
index 0f44db85..fea81c77 100644
--- a/package.json
+++ b/package.json
@@ -129,7 +129,7 @@
     "istanbul-lib-coverage": "^2.0.1",
     "mkdirp": "^0.5.1",
     "mocha": "^6.1.4",
-    "node-sass": "^4.10.0",
+    "node-sass": "^4.12.0",
     "raw-loader": "^0.5.1",
     "react-hot-loader": "^4.3.11",
     "sass-loader": "^7.1.0",