diff --git a/visualization-core/package.json b/visualization-core/package.json
index d670ccf..42ad3d9 100644
--- a/visualization-core/package.json
+++ b/visualization-core/package.json
@@ -29,6 +29,7 @@
 	"dependencies": {
 		"@hediet/semantic-json": "^0.3.15",
 		"@hediet/std": "^0.6.0",
+		"mobx": "^6.3.2",
 		"react": "^16.12.0",
 		"react-dom": "^16.12.0",
 		"react-measure": "^2.3.0"