diff --git a/ember-cli-build.js b/ember-cli-build.js
index 73acfe50771..476245cbe98 100644
--- a/ember-cli-build.js
+++ b/ember-cli-build.js
@@ -16,6 +16,14 @@ module.exports = function(defaults) {
     sassOptions       : {
       sourceMapEmbed: true
     },
+    SemanticUI: {
+      source: {
+        css        : 'node_modules/fomantic-ui-css/',
+        javascript : 'node_modules/fomantic-ui-css/',
+        images     : 'node_modules/fomantic-ui-css/themes/default/assets/images',
+        fonts      : 'node_modules/fomantic-ui-css/themes/default/assets/fonts'
+      }
+    },
     autoprefixer: {
       overrideBrowserslist : targets.browsers,
       enabled              : true,
@@ -43,14 +51,6 @@ module.exports = function(defaults) {
     sourcemaps: {
       enabled: true
     },
-    SemanticUI: {
-      source: {
-        css        : 'node_modules/@open-event/theme/dist',
-        javascript : 'node_modules/@open-event/theme/dist',
-        images     : 'node_modules/@open-event/theme/dist/themes/default/assets/images',
-        fonts      : 'node_modules/@open-event/theme/dist/themes/default/assets/fonts'
-      }
-    },
     autoImport: {
       webpack: {
         externals : { jquery: 'jQuery' },
diff --git a/package.json b/package.json
index 33b275c7e46..63f66b17518 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,6 @@
     "@ember/optional-features": "^1.3.0",
     "@glimmer/component": "^1.0.1",
     "@glimmer/tracking": "^1.0.1",
-    "@open-event/theme": "0.2.1-rounded",
     "@sentry/apm": "^5.20.1",
     "@sentry/browser": "^5.20.1",
     "@sentry/integrations": "^5.20.1",
@@ -132,6 +131,7 @@
     "eslint-plugin-ember-suave": "^2.0.1",
     "eslint-plugin-node": "^11.1.0",
     "fastboot-app-server": "^2.0.0",
+    "fomantic-ui-css": "^2.8.6",
     "google-material-color": "^1.3.1",
     "http-status": "^1.4.2",
     "loader.js": "^4.7.0",
diff --git a/yarn.lock b/yarn.lock
index 36cdb361abc..4065fd29d99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1474,11 +1474,6 @@
     "@nodelib/fs.scandir" "2.1.3"
     fastq "^1.6.0"
 
-"@open-event/theme@0.2.1-rounded":
-  version "0.2.1-rounded"
-  resolved "https://registry.yarnpkg.com/@open-event/theme/-/theme-0.2.1-rounded.tgz#841d711fbbc1837c6ff009c1ed1288c2371a02a6"
-  integrity sha512-Kcanx/LjRkJrf6Y46Tb7nk3GIc11kSUJY6DqUN22PmiP+LSutAv0Xxhs400CXT7mST3H/mrMq+CgZC9zc2YHDw==
-
 "@sentry/apm@5.20.1", "@sentry/apm@^5.20.1":
   version "5.20.1"
   resolved "https://registry.yarnpkg.com/@sentry/apm/-/apm-5.20.1.tgz#2126407ec8ecc6f78f42a8a8de99b90dec982036"
@@ -8724,6 +8719,13 @@ follow-redirects@^1.0.0:
   dependencies:
     debug "^3.2.6"
 
+fomantic-ui-css@^2.8.6:
+  version "2.8.6"
+  resolved "https://registry.yarnpkg.com/fomantic-ui-css/-/fomantic-ui-css-2.8.6.tgz#65bb7d4534e12557bfa82128c32578db3d05186d"
+  integrity sha512-JRQD1QDNX+qEYml+XoiCzoJZQpB3wD9ISVSWkFzKn0XgCxA3NMVCpoeWqSVFAGbQPatDfG3IP67Hy9x5wm+tiQ==
+  dependencies:
+    jquery "^3.4.0"
+
 for-in@^1.0.1, for-in@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/for-in/-/for-in-1.0.2.tgz#81068d295a8142ec0ac726c6e2200c30fb6d5e80"
@@ -10467,7 +10469,7 @@ jquery-deferred@^0.3.0:
   version "0.3.1"
   resolved "https://registry.yarnpkg.com/jquery-deferred/-/jquery-deferred-0.3.1.tgz#596eca1caaff54f61b110962b23cafea74c35355"
 
-"jquery@2 - 3", jquery@>=1.11, jquery@^3.2.1, jquery@^3.4.1, jquery@^3.5.0, jquery@x.*:
+"jquery@2 - 3", jquery@>=1.11, jquery@^3.2.1, jquery@^3.4.0, jquery@^3.4.1, jquery@^3.5.0, jquery@x.*:
   version "3.5.1"
   resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.5.1.tgz#d7b4d08e1bfdb86ad2f1a3d039ea17304717abb5"
   integrity sha512-XwIBPqcMn57FxfT+Go5pzySnm4KWkT1Tv7gjrpT1srtf8Weynl6R273VJ5GjkRb51IzMp5nbaPjJXMWeju2MKg==