diff --git a/serverless/requirements.txt b/serverless/requirements.txt
index 609b939..78de5d9 100644
--- a/serverless/requirements.txt
+++ b/serverless/requirements.txt
@@ -1,3 +1,3 @@
 phantom-snap==0.0.19
-ujson==1.35
+ujson==5.2.0
 jsonschema==2.6.0
\ No newline at end of file