diff --git a/build/css.js b/build/css.js
index d09452e..2a811b2 100644
--- a/build/css.js
+++ b/build/css.js
@@ -46,11 +46,11 @@ module.exports = (gulp, $) => {
      *   - minify in production
      *   - output
      */
-    gulp.task('css', ['iconfont'], () => {
+    gulp.task('css', gulp.series(['iconfont'], () => {
         return gulp.src(config.src.css)
         .pipe($.less())
         .pipe($.autoprefixer())
         .pipe($.if(config.minify, $.cleanCss()))
         .pipe(gulp.dest(config.dist.css));
-    });
+    }));
 };
diff --git a/build/docs.js b/build/docs.js
index 18700e9..05071ce 100644
--- a/build/docs.js
+++ b/build/docs.js
@@ -235,7 +235,7 @@ function enhanceRamlObj (ramlObj, internal = false) {
 module.exports = (gulp, $, flags) => {
     gulp.task('backend-clone', () => getRepo('git@github.com:mixer/raml.git', 'master'));
 
-    gulp.task('backend-doc', ['backend-clone'], () => {
+    gulp.task('backend-doc', gulp.series(['backend-clone'], () => {
         let docPath;
         if (config.backendRamlPath) {
             docPath = path.join(config.backendRamlPath, 'index.raml');
@@ -264,7 +264,7 @@ module.exports = (gulp, $, flags) => {
                 JSON.stringify(tree)
             );
         });
-    });
+    }));
 
     gulp.task('pull-client-repos', () => {
         const todo = require('./libraries')
diff --git a/build/misc.js b/build/misc.js
index 1e9055b..54e6fe3 100644
--- a/build/misc.js
+++ b/build/misc.js
@@ -43,7 +43,7 @@ function wrappedRequire (filePath) {
  */
 function getPermissions () {
     try {
-        return require('@mcph/beam-common').permissions;
+        return require('@mixer/beam-common').permissions;
     } catch (err) {
         if (err.code === 'MODULE_NOT_FOUND') {
             // eslint-disable-next-line no-console
@@ -228,15 +228,15 @@ module.exports = (gulp, $, flags) => {
         };
     });
 
-    gulp.task('html', ['html-raml']);
-
-    gulp.task('html-raml', ['backend-doc', 'pull-client-repos'], () => {
+    gulp.task('html-raml', gulp.series(['backend-doc', 'pull-client-repos'], () => {
         return gulp.src(config.src.html)
         .pipe(dataPipe())
         .pipe($.pug(getPugOpts()))
         .pipe($.if(config.minify, $.minifyHtml()))
         .pipe(gulp.dest(config.dist.html));
-    });
+    }));
+
+    gulp.task('html', gulp.series(['html-raml']));
 
     gulp.task('html-quick', () => {
         return gulp.src(config.src.html)
@@ -267,7 +267,7 @@ module.exports = (gulp, $, flags) => {
         .pipe(gulp.dest(config.dist.js));
     });
 
-    gulp.task('lint-json', () => {
+    gulp.task('lint-json', (done) => {
         const files = [
             'src/reference/chat/data.json',
             'src/reference/interactive/cplusplus/data.json',
@@ -282,9 +282,15 @@ module.exports = (gulp, $, flags) => {
             }
             fs.writeFileSync(file, `${transformed}\n`);
         });
+
+        // Have to do this for some gulp 4 reason
+        done();
     });
 
-    gulp.task('set-internal', () => {
+    gulp.task('set-internal', (done) => {
         flags.internal = true;
+
+        // Have to do this for some gulp 4 reason
+        done();
     });
 };
diff --git a/gulpfile.js b/gulpfile.js
index 42bba81..9f917b1 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -16,16 +16,16 @@ require('./build/css')(gulp, $, flags);
 
 const defaultTasks = ['html', 'js', 'css', 'images'];
 
-gulp.task('default', defaultTasks);
-gulp.task('internal', ['set-internal', ...defaultTasks]);
-gulp.task('recompile', ['html-quick', 'js', 'css', 'images']);
+gulp.task('default', gulp.series(defaultTasks));
+gulp.task('internal', gulp.series(['set-internal', ...defaultTasks]));
+gulp.task('recompile', gulp.series(['html-quick', 'js', 'css', 'images']));
 
 gulp.task('watch', () => {
-    gulp.watch('src/css/**/*.less', ['css']);
-    gulp.watch(config.src.html, ['html-quick']);
-    gulp.watch(config.src.snippets, ['html-quick']);
-    gulp.watch(config.src.js, ['js']);
+    gulp.watch('src/css/**/*.less', gulp.series(['css']));
+    gulp.watch(config.src.html, gulp.series(['html-quick']));
+    gulp.watch(config.src.snippets, gulp.series(['html-quick']));
+    gulp.watch(config.src.js, gulp.series(['js']));
     if (config.repos && config.repos.backend) {
-        gulp.watch(path.join(config.repos.backend, '**/*.raml'), ['html-raml']);
+        gulp.watch(path.join(config.repos.backend, '**/*.raml'), gulp.series(['html-raml']));
     }
 });
diff --git a/package.json b/package.json
index 520d8a0..3c8834e 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "eslint-plugin-import": "^1.9.2",
     "eslint-plugin-jsx-a11y": "^1.5.3",
     "eslint-plugin-react": "^5.2.2",
-    "gulp": "^3.9.1",
+    "gulp": "^4.0.2",
     "gulp-autoprefixer": "^3.1.0",
     "gulp-clean-css": "^2.0.10",
     "gulp-concat": "^2.6.0",
@@ -43,17 +43,17 @@
     "gulp-data": "^1.2.1",
     "gulp-iconfont": "^8.0.0",
     "gulp-if": "^2.0.1",
-    "gulp-imagemin": "^3.0.1",
+    "gulp-imagemin": "^6.1.0",
     "gulp-less": "^3.1.0",
     "gulp-load-plugins": "^1.2.4",
     "gulp-minify-html": "^1.0.6",
     "gulp-pug": "^3.3.0",
     "gulp-uglify": "^3.0.0",
     "highlight.js": "^9.5.0",
-    "http-server": "^0.9.0",
+    "http-server": "^0.11.1",
     "js-yaml": "^3.11.0",
     "lodash": "^4.13.1",
-    "marked": "^0.3.5",
+    "marked": "^0.7.0",
     "node-fetch": "^1.5.3",
     "npm-run-all": "^4.0.2",
     "pug-lint": "^2.2.2",
@@ -61,6 +61,6 @@
     "sticky-kit": "^1.1.3"
   },
   "optionalDependencies": {
-    "@mcph/beam-common": "^5.0.7"
+    "@mixer/beam-common": "^6.9.7"
   }
 }