diff --git a/oraw4_domain-type/analytics-backend/requirements.txt b/oraw4_domain-type/analytics-backend/requirements.txt
index 16e4ace..d407ab2 100644
--- a/oraw4_domain-type/analytics-backend/requirements.txt
+++ b/oraw4_domain-type/analytics-backend/requirements.txt
@@ -69,7 +69,7 @@ thinc==6.10.3
 toolz==0.9.0
 tqdm==4.32.1
 traitlets==4.3.2
-ujson==1.35
+ujson==5.4.0
 urllib3==1.25.3
 virtualenv==16.4.3
 Werkzeug==0.15.4