diff --git a/requirements.txt b/requirements.txt
index e2c98f57..aaa6c5ae 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,7 +10,7 @@ pydantic==1.8.2
 stackprinter==0.2.5
 voluptuous==0.12.1
 watchdog==2.1.1
-ujson==4.0.2
+ujson==5.4.0
 
 # Packages to run source tests
 pytest==6.2.4
diff --git a/requirements_setup.txt b/requirements_setup.txt
index 2824fd48..1dcb4896 100644
--- a/requirements_setup.txt
+++ b/requirements_setup.txt
@@ -9,4 +9,4 @@ pydantic==1.8.2
 stackprinter==0.2.5
 voluptuous==0.12.1
 watchdog==2.1.1
-ujson==4.0.2
+ujson==5.4.0