diff --git a/.circleci/config.yml b/.circleci/config.yml
index 7e27134..6450a6e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -50,11 +50,6 @@ templates:
         path: /tmp/artifacts
         destination: /artifacts
 jobs:
-  build-linux-node-v8:
-    docker:
-      - image: node:8
-    working_directory: ~/repo-linux-node-v8
-    steps: *build-steps
   build-linux-node-v10:
     docker:
       - image: node:10
@@ -71,14 +66,6 @@ jobs:
       - image: node:13
     working_directory: ~/repo-linux-node-v13
     steps: *build-steps
-  build-osx-node-v8:
-    macos:
-      xcode: "9.0"
-    dependencies:
-      override:
-        - brew install node@8
-    working_directory: ~/repo-osx-node-v8
-    steps: *build-steps
   build-osx-node-v10:
     macos:
       xcode: "9.0"
@@ -108,11 +95,9 @@ workflows:
   version: 2
   build:
     jobs:
-      - build-linux-node-v8
       - build-linux-node-v10
       - build-linux-node-v12
       - build-linux-node-v13
-      - build-osx-node-v8
       - build-osx-node-v10
       - build-osx-node-v12
       - build-osx-node-v13
diff --git a/appveyor.yml b/appveyor.yml
index 4bfc59e..5c6a57d 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,7 +1,6 @@
-image: Visual Studio 2015
+image: Visual Studio 2019
 environment:
   matrix:
-    - nodejs_version: "8"
     - nodejs_version: "10"
     - nodejs_version: "12"
     - nodejs_version: "13"
@@ -18,7 +17,7 @@ install:
       Update-NodeJsInstallation (Get-NodeJsLatestBuild $env:nodejs_version) $env:platform
       }
   - md public
-  - npm --vs2015 install --global windows-build-tools
+  - npm install --global windows-build-tools
   - npm install
 build_script:
   - npm run build
diff --git a/package-lock.json b/package-lock.json
index 0fc459b..223a485 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9070,12 +9070,9 @@
       }
     },
     "react-collapse": {
-      "version": "4.0.3",
-      "resolved": "https://registry.npmjs.org/react-collapse/-/react-collapse-4.0.3.tgz",
-      "integrity": "sha512-OO4NhtEqFtz+1ma31J1B7+ezdRnzHCZiTGSSd/Pxoks9hxrZYhzFEddeYt05A/1477xTtdrwo7xEa2FLJyWGCQ==",
-      "requires": {
-        "prop-types": "^15.5.8"
-      }
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/react-collapse/-/react-collapse-5.0.1.tgz",
+      "integrity": "sha512-cN2tkxBWizhPQ2JHfe0aUSJtmMthKA17NZkTElpiQ2snQAAi1hssXZ2fv88rAPNNvG5ss4t0PbOZT0TIl9Lk3Q=="
     },
     "react-color": {
       "version": "2.17.3",
diff --git a/package.json b/package.json
index c08f087..a8f02d0 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "react-aria-modal": "^4.0.0",
     "react-autobind": "^1.0.6",
     "react-autocomplete": "^1.8.1",
-    "react-collapse": "^4.0.3",
+    "react-collapse": "^5.0.1",
     "react-color": "^2.17.3",
     "react-dom": "^16.10.2",
     "react-file-reader-input": "^2.0.0",
diff --git a/src/components/layers/JSONEditor.jsx b/src/components/layers/JSONEditor.jsx
index 4fbd009..e0a99ec 100644
--- a/src/components/layers/JSONEditor.jsx
+++ b/src/components/layers/JSONEditor.jsx
@@ -107,18 +107,6 @@ class JSONEditor extends React.Component {
   }
 
   render() {
-    const codeMirrorOptions = {
-      mode: {name: "javascript", json: true},
-      tabSize: 2,
-      theme: 'maputnik',
-      viewportMargin: Infinity,
-      lineNumbers: true,
-      lint: true,
-      matchBrackets: true,
-      gutters: ["CodeMirror-lint-markers"],
-      scrollbarStyle: "null",
-    }
-
     const style = {};
     if (this.props.maxHeight) {
       style.maxHeight = this.props.maxHeight;
diff --git a/src/components/map/MapboxGlMap.jsx b/src/components/map/MapboxGlMap.jsx
index 7047d6a..a0baebb 100644
--- a/src/components/map/MapboxGlMap.jsx
+++ b/src/components/map/MapboxGlMap.jsx
@@ -124,6 +124,7 @@ export default class MapboxGlMap extends React.Component {
       container: this.container,
       style: this.props.mapStyle,
       hash: true,
+      maxZoom: 24
     }
 
     const map = new MapboxGl.Map(mapOpts);
diff --git a/src/config/styles.json b/src/config/styles.json
index a9e0ea1..ff0e407 100644
--- a/src/config/styles.json
+++ b/src/config/styles.json
@@ -8,31 +8,31 @@
   {
     "id": "klokantech-basic",
     "title": "Klokantech Basic",
-    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/klokantech-basic-gl-style@e142f83/style.json",
+    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/klokantech-basic-gl-style@v1.9/style.json",
     "thumbnail": "https://maputnik.github.io/thumbnails/klokantech-basic.png"
   },
   {
     "id": "dark-matter",
     "title": "Dark Matter",
-    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/dark-matter-gl-style@1dcc1d3/style.json",
+    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/dark-matter-gl-style@v1.8/style.json",
     "thumbnail": "https://maputnik.github.io/thumbnails/dark-matter.png"
   },
   {
     "id": "positron",
     "title": "Positron",
-    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/positron-gl-style@2877814/style.json",
+    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/positron-gl-style@v1.8/style.json",
     "thumbnail": "https://maputnik.github.io/thumbnails/positron.png"
   },
   {
     "id": "osm-bright",
     "title": "OSM Bright",
-    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/osm-bright-gl-style@500e26e/style.json",
+    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/osm-bright-gl-style@v1.9/style.json",
     "thumbnail": "https://maputnik.github.io/thumbnails/osm-bright.png"
   },
   {
     "id": "toner-gl-style",
     "title": "Toner",
-    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/toner-gl-style@bb49571/style.json",
+    "url": "https://cdn.jsdelivr.net/gh/openmaptiles/toner-gl-style@dcb6e64/style.json",
     "thumbnail": "https://maputnik.github.io/thumbnails/toner.png"
   },
   {
diff --git a/src/styles/_react-collapse.scss b/src/styles/_react-collapse.scss
index 3ee0cae..ce8db33 100644
--- a/src/styles/_react-collapse.scss
+++ b/src/styles/_react-collapse.scss
@@ -7,3 +7,7 @@
     flex: 1;
   }
 }
+
+.ReactCollapse--collapse {
+  transition: height 180ms;
+}