diff --git a/config/babel.js b/config/babel.js
index 6782b47..e6edb39 100644
--- a/config/babel.js
+++ b/config/babel.js
@@ -2,5 +2,6 @@ module.exports = {
   presets: [
     ['@babel/preset-env', {targets: {node: 'current'}}],
     '@babel/preset-typescript'
-  ]
+  ],
+  plugins: ['@babel/plugin-proposal-class-properties']
 }
diff --git a/package.json b/package.json
index 8cb8424..10702f8 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,7 @@
   },
   "dependencies": {
     "@babel/core": "7.8.3",
+    "@babel/plugin-proposal-class-properties": "7.8.3",
     "@babel/preset-env": "7.8.3",
     "@babel/preset-typescript": "7.8.3",
     "@syncano/test": "0.15.1-alpha.36",
diff --git a/yarn.lock b/yarn.lock
index 86f4ba5..a8e1bfc 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -267,6 +267,14 @@
     "@babel/helper-remap-async-to-generator" "^7.8.3"
     "@babel/plugin-syntax-async-generators" "^7.8.0"
 
+"@babel/plugin-proposal-class-properties@7.8.3":
+  version "7.8.3"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-class-properties/-/plugin-proposal-class-properties-7.8.3.tgz#5e06654af5cd04b608915aada9b2a6788004464e"
+  integrity sha512-EqFhbo7IosdgPgZggHaNObkmO1kNUe3slaKu54d5OWvy+p9QIKOzK1GAEpAIsZtWVtPXUHSMcT4smvDrCfY4AA==
+  dependencies:
+    "@babel/helper-create-class-features-plugin" "^7.8.3"
+    "@babel/helper-plugin-utils" "^7.8.3"
+
 "@babel/plugin-proposal-dynamic-import@^7.8.3":
   version "7.8.3"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-dynamic-import/-/plugin-proposal-dynamic-import-7.8.3.tgz#38c4fe555744826e97e2ae930b0fb4cc07e66054"